What parts of Physics are very difficult to comprehend?
Q. I'm curious what the hardest-to-understand areas of physics are. I'm in the second year of a physics degree, and I'm curious what might become difficult. I've been able to understand both special and general relativity. Later this year I'll be learning quantum mechanics, particle physics, solid-state physics, and the Schrodinger equation. Which of these topics am I most likely to struggle with (keeping in mind I already understand general relativity)? I'm curious as to why people think you have to be really smart to study physics. Not to say I'm not, but I wonder.
Asked by jsprplc2006 - Wed Sep 26 12:10:23 2007 - - 4 Answers - 0 Comments
A. Quantummm physics. people have to be smart enough to understand bcoz 1. d abstract complex theories n equations. 2. they must understand Higher Advanced Math to do physics. 3. n if u go deep inside physics its about understanding of Natural Phenomenon n why, how things happen n d reason behind things happen is not "common" to common senses , u have to work it out by using tools n math, not by ur eyes, nose, ears alone . n the theories u learn is not exactly absolute n can be wrong too, so wats is the truth u have to decide for ur own. pretty tough compare to other subjects.
Answered by negimagi - Wed Sep 26 12:39:06 2007
Q. I'm curious what the hardest-to-understand areas of physics are. I'm in the second year of a physics degree, and I'm curious what might become difficult. I've been able to understand both special and general relativity. Later this year I'll be learning quantum mechanics, particle physics, solid-state physics, and the Schrodinger equation. Which of these topics am I most likely to struggle with (keeping in mind I already understand general relativity)? I'm curious as to why people think you have to be really smart to study physics. Not to say I'm not, but I wonder.
Asked by jsprplc2006 - Wed Sep 26 12:10:23 2007 - - 4 Answers - 0 Comments
A. Quantummm physics. people have to be smart enough to understand bcoz 1. d abstract complex theories n equations. 2. they must understand Higher Advanced Math to do physics. 3. n if u go deep inside physics its about understanding of Natural Phenomenon n why, how things happen n d reason behind things happen is not "common" to common senses , u have to work it out by using tools n math, not by ur eyes, nose, ears alone . n the theories u learn is not exactly absolute n can be wrong too, so wats is the truth u have to decide for ur own. pretty tough compare to other subjects.
Answered by negimagi - Wed Sep 26 12:39:06 2007
I have forgotten physics in which I have done my Masters.Can anyone help how to start again?Any Online course?
Q. I have done physics ( masters) but then my track changed and since last 18 years Iam into social sector where physics is of no use. How should I begin. Is there any online guide in Physics wher I refreash myself. I wish to continue and do PhD. Can ony one help.
Asked by light - Thu Jan 24 03:23:53 2008 - - 4 Answers - 0 Comments
A. If you especially want an online course, I don't know if there are any actual revision courses for people who've previously done physics to that level and are just looking to re-acquaint themselves with the material. There are heaps of online High School level courses available from the cyber-schools but I'm guessing you'd probably get very bored, very quickly if you were to return to that level of simplicity. There are universities that offer their programmes online that might suit your level of previous knowledge better but anything like that would probably be expensive! I do know though that ACS (Australian Correspondence School) allows people to buy everything they need to complete any of their courses at half price - providing… [cont.]
Answered by Hannah M - Thu Jan 24 04:08:41 2008
Q. I have done physics ( masters) but then my track changed and since last 18 years Iam into social sector where physics is of no use. How should I begin. Is there any online guide in Physics wher I refreash myself. I wish to continue and do PhD. Can ony one help.
Asked by light - Thu Jan 24 03:23:53 2008 - - 4 Answers - 0 Comments
A. If you especially want an online course, I don't know if there are any actual revision courses for people who've previously done physics to that level and are just looking to re-acquaint themselves with the material. There are heaps of online High School level courses available from the cyber-schools but I'm guessing you'd probably get very bored, very quickly if you were to return to that level of simplicity. There are universities that offer their programmes online that might suit your level of previous knowledge better but anything like that would probably be expensive! I do know though that ACS (Australian Correspondence School) allows people to buy everything they need to complete any of their courses at half price - providing… [cont.]
Answered by Hannah M - Thu Jan 24 04:08:41 2008
How hard would a correspondence course in Physics 112 be for someone who has never taken physics before?
Q. I have been conditionally accepted into a respiratory therapist program but have never taken any Physics perviously and one of the requirments is 112 physics. I am planning to take a correspondence course via a local college, but am worried about not being able to understand the concepts of physics. I would greatly appreciate some insite on what Im up against! Thanks! PS: Also if you know how interelated the concepts of physics and respiratory therapy are it would be nice to know.
Asked by Regina - Wed Apr 23 17:01:58 2008 - - 2 Answers - 0 Comments
A. Given that every university has different numbering systems, telling us that it is Physics 112 is meaningless. If it is an introductory class for non-science majors, then it should not be too hard. If it is an introductory class for science majors, it may require you to know calculus to do the work. If it is not an introductory class, then it could be very difficult for you. I doubt that knowing physics will help much in doing respiratory therapy. However, the skills that you use in learning physics will be valuable in any field.
Answered by Ranto - Wed Apr 23 17:12:48 2008
Q. I have been conditionally accepted into a respiratory therapist program but have never taken any Physics perviously and one of the requirments is 112 physics. I am planning to take a correspondence course via a local college, but am worried about not being able to understand the concepts of physics. I would greatly appreciate some insite on what Im up against! Thanks! PS: Also if you know how interelated the concepts of physics and respiratory therapy are it would be nice to know.
Asked by Regina - Wed Apr 23 17:01:58 2008 - - 2 Answers - 0 Comments
A. Given that every university has different numbering systems, telling us that it is Physics 112 is meaningless. If it is an introductory class for non-science majors, then it should not be too hard. If it is an introductory class for science majors, it may require you to know calculus to do the work. If it is not an introductory class, then it could be very difficult for you. I doubt that knowing physics will help much in doing respiratory therapy. However, the skills that you use in learning physics will be valuable in any field.
Answered by Ranto - Wed Apr 23 17:12:48 2008
What's the difference between college physics and university physics?
Q. Looking up school requirements, out of the two degrees I want, one wants college physics and one wants university physics. What is the difference?
Asked by of a demon in my view - Sun Sep 7 21:26:31 2008 - - 2 Answers - 0 Comments
A. university physics is usually calculus-based and will require calculus as a prerequisite (or sometimes co-requisite). college physics is usually more algebra-based and the math is not quite as intensive. I majored in physics.
Answered by BonesofaTeacher - Sun Sep 7 21:29:38 2008
Q. Looking up school requirements, out of the two degrees I want, one wants college physics and one wants university physics. What is the difference?
Asked by of a demon in my view - Sun Sep 7 21:26:31 2008 - - 2 Answers - 0 Comments
A. university physics is usually calculus-based and will require calculus as a prerequisite (or sometimes co-requisite). college physics is usually more algebra-based and the math is not quite as intensive. I majored in physics.
Answered by BonesofaTeacher - Sun Sep 7 21:29:38 2008
What can I do to go to a regular physics and calculus class?
Q. I'm currently in fundamental physics. I really dislike the class. We have gone over simple scalar and vector equations for two months. I taught myself up to integrational calculus, so I could keep up with a regular physics class. I'm working on a physics problem with finding the acceleration on top of a parabola. I need to use calculus for this. I also want to do a problem using Theory of Relativity and Loretz (sp?) Transformation equations. Is there anything else I can do to further my chances of going into a calculus and regular physics? I'm currently in Geometry for a math class and in 11th grade. Thanks for your input. It is greatly appreciated.
Asked by Innovater Jill - Wed Oct 3 21:21:31 2007 - - 1 Answers - 0 Comments
A. Talk to your teacher, especially if he/she teaches the other class. The point is learning the concept, rather than an equation, but your teacher should be able to help you, either learn the difference between classes (and whether you probably can jump or help focus your independent study). Then you might want to talk to your guidance counselor at school. If you are in geometry, you might want to add another math class at the semester to catch up with other college bound students at the semester. Or see if you can prove you can test out of the material (better have As). Another option might be taking a class by correspondence or at a local college. If your parents can financially handle it, it could give you more time to get in… [cont.]
Answered by Lola - Thu Oct 4 05:57:16 2007
Q. I'm currently in fundamental physics. I really dislike the class. We have gone over simple scalar and vector equations for two months. I taught myself up to integrational calculus, so I could keep up with a regular physics class. I'm working on a physics problem with finding the acceleration on top of a parabola. I need to use calculus for this. I also want to do a problem using Theory of Relativity and Loretz (sp?) Transformation equations. Is there anything else I can do to further my chances of going into a calculus and regular physics? I'm currently in Geometry for a math class and in 11th grade. Thanks for your input. It is greatly appreciated.
Asked by Innovater Jill - Wed Oct 3 21:21:31 2007 - - 1 Answers - 0 Comments
A. Talk to your teacher, especially if he/she teaches the other class. The point is learning the concept, rather than an equation, but your teacher should be able to help you, either learn the difference between classes (and whether you probably can jump or help focus your independent study). Then you might want to talk to your guidance counselor at school. If you are in geometry, you might want to add another math class at the semester to catch up with other college bound students at the semester. Or see if you can prove you can test out of the material (better have As). Another option might be taking a class by correspondence or at a local college. If your parents can financially handle it, it could give you more time to get in… [cont.]
Answered by Lola - Thu Oct 4 05:57:16 2007
What does a minor in physics really tell you about an individual?
Q. I am graduating from college in a year with a major in mathematics and a minor in physics. Where I go to school all math majors MUST have a minor. I choose the physics minor for the mere fact that i already had to take Physics 1 and 2 for my degree so why not take 3 more physics classes instead of 5 more classes of something else. I get through physics courses cause I get the math but other then that I have to have a minor .. I dont know what a minor really says about someone..i hope this makes sense... (here is a list of the physics courses I took for my minor...Physics 1, Physics 2, Modern Physics, Modern Physics Lab, Optics, and Mathematical Physics)
Asked by bob8763763 - Thu Feb 9 22:08:15 2006 - - 1 Answers - 0 Comments
A. WELL, I don't know what to tell you here. If I had to answer the question from a outside perspective (i.e. not having a B.S. in math and a physics minor myself), I would say having the physics minor is a sign that not only are you able to conquer the rigid world of mathematics, but that you are flexible enough to apply the math to a specific discipline, in your case physics, rather than just having a pure logic style of thinking that turns math majors into math Ph.Ds. From my personal perspective, it hasn't meant much. I'm headed into the education field since I haven't been able to solidify a job doing anything I'm interested in related to math or physics. I hope you have a better student services/job placement program at your… [cont.]
Answered by pessimist_atheist - Fri Feb 10 10:28:25 2006
Q. I am graduating from college in a year with a major in mathematics and a minor in physics. Where I go to school all math majors MUST have a minor. I choose the physics minor for the mere fact that i already had to take Physics 1 and 2 for my degree so why not take 3 more physics classes instead of 5 more classes of something else. I get through physics courses cause I get the math but other then that I have to have a minor .. I dont know what a minor really says about someone..i hope this makes sense... (here is a list of the physics courses I took for my minor...Physics 1, Physics 2, Modern Physics, Modern Physics Lab, Optics, and Mathematical Physics)
Asked by bob8763763 - Thu Feb 9 22:08:15 2006 - - 1 Answers - 0 Comments
A. WELL, I don't know what to tell you here. If I had to answer the question from a outside perspective (i.e. not having a B.S. in math and a physics minor myself), I would say having the physics minor is a sign that not only are you able to conquer the rigid world of mathematics, but that you are flexible enough to apply the math to a specific discipline, in your case physics, rather than just having a pure logic style of thinking that turns math majors into math Ph.Ds. From my personal perspective, it hasn't meant much. I'm headed into the education field since I haven't been able to solidify a job doing anything I'm interested in related to math or physics. I hope you have a better student services/job placement program at your… [cont.]
Answered by pessimist_atheist - Fri Feb 10 10:28:25 2006
How important is high school physics for a bio major in college?
Q. I want a biology major in college but I don't want to take physics in my senior year of high school. Will it make a difference if I don't take physics in high school?
Asked by madd - Sun Sep 7 20:11:45 2008 - - 2 Answers - 0 Comments
A. high school physics are useful for math and engineering majors. furthermore, it is interesting. i loved it so much i took physics 2. i am going into neuroscience, which is centered in biology. it will look good to a college because physics is challenging. but if you dont want it, then dont take it, cause you dont really need it for biology. =)
Answered by omnomnomnom - Sun Sep 7 20:47:10 2008
Q. I want a biology major in college but I don't want to take physics in my senior year of high school. Will it make a difference if I don't take physics in high school?
Asked by madd - Sun Sep 7 20:11:45 2008 - - 2 Answers - 0 Comments
A. high school physics are useful for math and engineering majors. furthermore, it is interesting. i loved it so much i took physics 2. i am going into neuroscience, which is centered in biology. it will look good to a college because physics is challenging. but if you dont want it, then dont take it, cause you dont really need it for biology. =)
Answered by omnomnomnom - Sun Sep 7 20:47:10 2008
What is the difference between a major in Physics vs. a major in Applied Physics?
Q. Also, if I am interested in getting a Ph.D in something along the lines of Theoretical Physics or Partical Physics, should I double major? What is a good course for me?
Asked by abracadabra [of Gallifrey] - Mon Jul 27 14:48:33 2009 - - 1 Answers - 0 Comments
A. i do believe applied is where you do sh*t to test stuff. and stuff. got it?
Answered by unknown - Mon Jul 27 16:12:05 2009
Q. Also, if I am interested in getting a Ph.D in something along the lines of Theoretical Physics or Partical Physics, should I double major? What is a good course for me?
Asked by abracadabra [of Gallifrey] - Mon Jul 27 14:48:33 2009 - - 1 Answers - 0 Comments
A. i do believe applied is where you do sh*t to test stuff. and stuff. got it?
Answered by unknown - Mon Jul 27 16:12:05 2009
Is physics necessary or recommended if I am going to study Maths B?
Q. I was just wondering if I should study physics if I am going to be studying Maths B. Do formula's in physics get used in Maths B? I don't really want to do physics if I dont have too.
Asked by Shannon T - Mon Jun 15 00:25:13 2009 - - 2 Answers - 0 Comments
A. Ermm...No...not at all... Maths helps physics much more than physics helps maths. Naturally when you get to the mechanics course with resoloving forces and stuff the physics people will have a slight advantage. Other than that, there's really no need to take physics if you're intrested in maths...apart from the fact physics is awesome. :) Regards, Joe
Answered by unknown - Thu Jun 18 18:04:35 2009
Q. I was just wondering if I should study physics if I am going to be studying Maths B. Do formula's in physics get used in Maths B? I don't really want to do physics if I dont have too.
Asked by Shannon T - Mon Jun 15 00:25:13 2009 - - 2 Answers - 0 Comments
A. Ermm...No...not at all... Maths helps physics much more than physics helps maths. Naturally when you get to the mechanics course with resoloving forces and stuff the physics people will have a slight advantage. Other than that, there's really no need to take physics if you're intrested in maths...apart from the fact physics is awesome. :) Regards, Joe
Answered by unknown - Thu Jun 18 18:04:35 2009
What is the difference between AP Physics B and C?
Q. I am planning to take the AP Physics that covers everything we are supposed to know in Physics during my junior year. And which one is harder?
Asked by biancaonwenu - Sun May 10 20:20:48 2009 - - 1 Answers - 0 Comments
A. ap physics c is calculus involved and ap physics b is what i'm taking now...non calculus. i've HEARD that ap phsyics c is hard, but right now for me ap physics B is horrendous. i have the exam tomorrow, i will let you know how that goes.
Answered by fighting to escape ignorance - Sun May 10 23:10:05 2009
Q. I am planning to take the AP Physics that covers everything we are supposed to know in Physics during my junior year. And which one is harder?
Asked by biancaonwenu - Sun May 10 20:20:48 2009 - - 1 Answers - 0 Comments
A. ap physics c is calculus involved and ap physics b is what i'm taking now...non calculus. i've HEARD that ap phsyics c is hard, but right now for me ap physics B is horrendous. i have the exam tomorrow, i will let you know how that goes.
Answered by fighting to escape ignorance - Sun May 10 23:10:05 2009
What field of physics should I go into?
Q. I'm presently an undergraduate sophomore majoring in physics and math. I was planning on studying particle physics in graduate school but lately have been hearing about the poor job outlooks in the field. What would be a more promising physics-related field?
Asked by Burton - Sat May 17 18:32:18 2008 - - 4 Answers - 0 Comments
A. Most of these are branches under applied physics. 1. Soil physics and Geophysics. Not so much a hot field anymore. Many still love this kind of work though. 2. Space physics. Space is probably the future it seems to be where we are going. 3. Communication physics. There will be tons of work in this field for at least the next 40-60 years at least. We thrive on communication, especially internet based. 4. Agrophysics. Not a lot of work in this field, but the work is very rewarding, what little there is. 5. Biophysics, Medical physics, and Sports physics. This seems to be very popular right now. Lots of work in this area, but the work is sometimes hard to find.
Answered by Jason - Sat May 17 18:54:37 2008
Q. I'm presently an undergraduate sophomore majoring in physics and math. I was planning on studying particle physics in graduate school but lately have been hearing about the poor job outlooks in the field. What would be a more promising physics-related field?
Asked by Burton - Sat May 17 18:32:18 2008 - - 4 Answers - 0 Comments
A. Most of these are branches under applied physics. 1. Soil physics and Geophysics. Not so much a hot field anymore. Many still love this kind of work though. 2. Space physics. Space is probably the future it seems to be where we are going. 3. Communication physics. There will be tons of work in this field for at least the next 40-60 years at least. We thrive on communication, especially internet based. 4. Agrophysics. Not a lot of work in this field, but the work is very rewarding, what little there is. 5. Biophysics, Medical physics, and Sports physics. This seems to be very popular right now. Lots of work in this area, but the work is sometimes hard to find.
Answered by Jason - Sat May 17 18:54:37 2008
What do high school students learn about physics at school?
Q. Well, I'm learning English and have the intention of going to the UK to study physics. I'm currently at high school in China. Would you guys please tell me what high school students learn about physics in the UK? I've already learnt Newton's laws of motion, circular motion, conservation of energy, impulse, conservation of linear momentum and the stuff connected with electromagnetic field and some related calculations. And I wonder what else I need to learn before I become ready for university study.
Asked by taotao329 - Fri Mar 13 02:45:56 2009 - - 4 Answers - 0 Comments
A. Probably the best links for you are these (for an up and coming uni student): (Note that general relativity is taught in 2nd year) The main issue you learn in electro-magnetics is here: You also recap on the newtonian physics and other conventional physics. Please answer mine:
Answered by Seed of Sanctity - Fri Mar 13 03:00:39 2009
Q. Well, I'm learning English and have the intention of going to the UK to study physics. I'm currently at high school in China. Would you guys please tell me what high school students learn about physics in the UK? I've already learnt Newton's laws of motion, circular motion, conservation of energy, impulse, conservation of linear momentum and the stuff connected with electromagnetic field and some related calculations. And I wonder what else I need to learn before I become ready for university study.
Asked by taotao329 - Fri Mar 13 02:45:56 2009 - - 4 Answers - 0 Comments
A. Probably the best links for you are these (for an up and coming uni student): (Note that general relativity is taught in 2nd year) The main issue you learn in electro-magnetics is here: You also recap on the newtonian physics and other conventional physics. Please answer mine:
Answered by Seed of Sanctity - Fri Mar 13 03:00:39 2009
From a chemistry andor physics point of view. How do you explain pepper repelling from dish soap?
Q. You know when you put ground pepper ontop of water in a dish. The pepper floats on top, covering the water. But when you put some dishwater soap on your finger and stick it in the middle of the dish, The pepper moves away from the finger. How do you explain this in terms of chemistry and physics?
Asked by Mike - Mon Dec 31 03:43:41 2007 - - 1 Answers - 0 Comments
A. The answer is on this site: The "simple" answer is that the surface tension of the pepper particles is less than "pure" water (about 72 ergs/cm^2), so the pepper particles tend to float on the water's surface. When you add a drop of soap, you greatly reduce the surface tension of the water near the point at which you add the soap. Initially, this causes a repulsion of the pepper particles and the particles tend to follow the high surface tension areas. If you shake the solution, you will find that the pepper particles get "wetted" by the soap solution and the pepper will disperse in the soap solution.
Answered by ChatNoir - Mon Dec 31 04:50:51 2007
Q. You know when you put ground pepper ontop of water in a dish. The pepper floats on top, covering the water. But when you put some dishwater soap on your finger and stick it in the middle of the dish, The pepper moves away from the finger. How do you explain this in terms of chemistry and physics?
Asked by Mike - Mon Dec 31 03:43:41 2007 - - 1 Answers - 0 Comments
A. The answer is on this site: The "simple" answer is that the surface tension of the pepper particles is less than "pure" water (about 72 ergs/cm^2), so the pepper particles tend to float on the water's surface. When you add a drop of soap, you greatly reduce the surface tension of the water near the point at which you add the soap. Initially, this causes a repulsion of the pepper particles and the particles tend to follow the high surface tension areas. If you shake the solution, you will find that the pepper particles get "wetted" by the soap solution and the pepper will disperse in the soap solution.
Answered by ChatNoir - Mon Dec 31 04:50:51 2007
What math is generally needed for a regular high school physics course?
Q. At my school, you can take your science in any order you want, but all honours and AP courses require one year in that science. I have to take Biology, Chemistry, and Physics. I am currently taking Biology, and I can take physics next year and then chemistry after that. I was wondering what math courses are recommended for Physics? By next year, I'll have taken Algebra I and Geometry.
Asked by OrangeD00D - Wed Sep 9 22:30:46 2009 - - 4 Answers - 0 Comments
A. That question is really best answered by your counselor or the physics teacher at your school, since they know the requirements of your particular course. I can tell you that any physics course except a basic concepts-only course (which yours probably isn't) will require you to be able to solve basic equations routinely. You may also need to solve some quadratics using the quadratic formula. Most physics courses will also require some right triangle trigonometry, which is usually taught in geometry, as well as some knowledge of exponential equations (for radioactive decay) and logarithms (for relative intensity level of sound). The physics course that I teach, for example, requires that students at the very least take Algebra II… [cont.]
Answered by unknown - Wed Sep 9 22:46:26 2009
Q. At my school, you can take your science in any order you want, but all honours and AP courses require one year in that science. I have to take Biology, Chemistry, and Physics. I am currently taking Biology, and I can take physics next year and then chemistry after that. I was wondering what math courses are recommended for Physics? By next year, I'll have taken Algebra I and Geometry.
Asked by OrangeD00D - Wed Sep 9 22:30:46 2009 - - 4 Answers - 0 Comments
A. That question is really best answered by your counselor or the physics teacher at your school, since they know the requirements of your particular course. I can tell you that any physics course except a basic concepts-only course (which yours probably isn't) will require you to be able to solve basic equations routinely. You may also need to solve some quadratics using the quadratic formula. Most physics courses will also require some right triangle trigonometry, which is usually taught in geometry, as well as some knowledge of exponential equations (for radioactive decay) and logarithms (for relative intensity level of sound). The physics course that I teach, for example, requires that students at the very least take Algebra II… [cont.]
Answered by unknown - Wed Sep 9 22:46:26 2009
How do I solve this physics problems involving acceleration?
Q. How can I solve this problem or atleast what are the steps I need to take? Heres the problem: Our hero, Noah Vale, is out for his afternoon constitutional when he spots the sultry Miss Terius standing at the bottom of a 1225m high cliff. At the top of the cliff is the arch villain, Rotcod Dam, who has dropped a boulder to strike the lovely young miss. Noah, who is standing still 307.5m away from the cliff when the boulder starts downward, rushes to her resue. Noah, great athlete that he is, can accelerate at 10.00m/s/s, which he does until he reached his maximum velocity of 25.00 m/s. .He then races at the maximum velocity until he must stop to resue her. (Noah, being a truly great athlete can slow as fast as he can speed up, in other… [cont.]
Asked by danmac7055 - Sun Sep 16 15:29:28 2007 - - 1 Answers - 0 Comments
A. First, let's find out how long it will take for the boulder to reach the bottom of the cliff: 1225=(9.8/2)*(t^2)=4.9*t^ 2 1225/4.9=t^2 sqrt(1225/4.9)=t=15.81 seconds Our hero must reach her in under 15.81 seconds. Now, let's figure out how long it will take him to cover the 307.5 meters. First, how much time and distance are needed to reach his top speed: Clearly, he accelerates to his top speed in 2.5 seconds. The distance covered during his acceleration is: d=a/2*t^2=10/2*2.5^2=5*6. 25=31.25 meters. Decelerating will take an equal time and distance. So, Noah runs the remaining 245 meters at a constant rate of 25 meters/second. This will take 9.8 seconds: 245/25=9.8 seconds. His total run takes 14.8 seconds: 9.8+(2.5*2)=14.8 Yes,… [cont.]
Answered by farwallronny - Sun Sep 16 16:10:12 2007
Q. How can I solve this problem or atleast what are the steps I need to take? Heres the problem: Our hero, Noah Vale, is out for his afternoon constitutional when he spots the sultry Miss Terius standing at the bottom of a 1225m high cliff. At the top of the cliff is the arch villain, Rotcod Dam, who has dropped a boulder to strike the lovely young miss. Noah, who is standing still 307.5m away from the cliff when the boulder starts downward, rushes to her resue. Noah, great athlete that he is, can accelerate at 10.00m/s/s, which he does until he reached his maximum velocity of 25.00 m/s. .He then races at the maximum velocity until he must stop to resue her. (Noah, being a truly great athlete can slow as fast as he can speed up, in other… [cont.]
Asked by danmac7055 - Sun Sep 16 15:29:28 2007 - - 1 Answers - 0 Comments
A. First, let's find out how long it will take for the boulder to reach the bottom of the cliff: 1225=(9.8/2)*(t^2)=4.9*t^ 2 1225/4.9=t^2 sqrt(1225/4.9)=t=15.81 seconds Our hero must reach her in under 15.81 seconds. Now, let's figure out how long it will take him to cover the 307.5 meters. First, how much time and distance are needed to reach his top speed: Clearly, he accelerates to his top speed in 2.5 seconds. The distance covered during his acceleration is: d=a/2*t^2=10/2*2.5^2=5*6. 25=31.25 meters. Decelerating will take an equal time and distance. So, Noah runs the remaining 245 meters at a constant rate of 25 meters/second. This will take 9.8 seconds: 245/25=9.8 seconds. His total run takes 14.8 seconds: 9.8+(2.5*2)=14.8 Yes,… [cont.]
Answered by farwallronny - Sun Sep 16 16:10:12 2007
What work experience would help me get a career in Physics?
Q. I love physics and astronomy and I want to have a career in physics in my later life (possibly theoretical physics). What sort of work experience could I do to help me achieve this?
Asked by jasminegrosso - Thu Oct 22 17:03:01 2009 - - 3 Answers - 0 Comments
A. there are no "careers" in physics you can study physics at doctorate and post doc level but most of it will be theoretical, the only career in astronomy is as an astronomer and that is overpopulated
Answered by Harley Drive - Thu Oct 22 20:43:49 2009
Q. I love physics and astronomy and I want to have a career in physics in my later life (possibly theoretical physics). What sort of work experience could I do to help me achieve this?
Asked by jasminegrosso - Thu Oct 22 17:03:01 2009 - - 3 Answers - 0 Comments
A. there are no "careers" in physics you can study physics at doctorate and post doc level but most of it will be theoretical, the only career in astronomy is as an astronomer and that is overpopulated
Answered by Harley Drive - Thu Oct 22 20:43:49 2009
Why does physics disprove the ability to tell the future?
Q. I heard somewhere that einstein and all of physics has disproved the ability to tell the future, therefore all palm readers, fortune tellers, and tarot card people are lying. What principle/law in physics disproves the ability to tell the future?
Asked by DartL - Fri Mar 20 02:32:08 2009 - - 9 Answers - 2 Comments
A. My simplified answer (based on relativity) The future implies knowing something, which has not yet occured in time. Our concept of time is based on the speed light travels in a vacuum. In order to go forward in time and view something or experience something (the future) it would require going faster than the speed of light. In order to do that we must either have an infinitely large source of energy or a massless particle, which can travel faster than the speed of light. Since we define our massless particle as the one, which can travel faster than the speed of light this is impossible. Some electromagnetic waves may seem to or as a group have a velocity, which seems to exceed light speed but the problem is once those waves or… [cont.]
Answered by physineer - Fri Mar 20 02:46:15 2009
Q. I heard somewhere that einstein and all of physics has disproved the ability to tell the future, therefore all palm readers, fortune tellers, and tarot card people are lying. What principle/law in physics disproves the ability to tell the future?
Asked by DartL - Fri Mar 20 02:32:08 2009 - - 9 Answers - 2 Comments
A. My simplified answer (based on relativity) The future implies knowing something, which has not yet occured in time. Our concept of time is based on the speed light travels in a vacuum. In order to go forward in time and view something or experience something (the future) it would require going faster than the speed of light. In order to do that we must either have an infinitely large source of energy or a massless particle, which can travel faster than the speed of light. Since we define our massless particle as the one, which can travel faster than the speed of light this is impossible. Some electromagnetic waves may seem to or as a group have a velocity, which seems to exceed light speed but the problem is once those waves or… [cont.]
Answered by physineer - Fri Mar 20 02:46:15 2009
What is the most fascinating unsolved problem in physics?
Q. In your opinion, what is the most interesting unsolved problem in physics? If you could ask one question about physics and be given the answer, what would you ask?
Asked by Jeffrey K - Thu Mar 6 16:18:29 2008 - - 6 Answers - 0 Comments
A. Where does the gravitational force actually come from, is there a gravitron (partical of gravity), why is it such a weak force compared to the other 3 fundamental forces. String theory tries to explain some of this, but no one actually knows why yet.
Answered by Brian - Thu Mar 6 16:26:43 2008
Q. In your opinion, what is the most interesting unsolved problem in physics? If you could ask one question about physics and be given the answer, what would you ask?
Asked by Jeffrey K - Thu Mar 6 16:18:29 2008 - - 6 Answers - 0 Comments
A. Where does the gravitational force actually come from, is there a gravitron (partical of gravity), why is it such a weak force compared to the other 3 fundamental forces. String theory tries to explain some of this, but no one actually knows why yet.
Answered by Brian - Thu Mar 6 16:26:43 2008
What are the principles of physics behind the medieval weapon, ballista ?
Q. What are the principles of physics behind the medieval weapon, ballista ? How is it operated >?
Asked by Pika Bear - Sat Aug 30 19:52:57 2008 - - 1 Answers - 0 Comments
A. What a neat weapon. make a good potato launcher. good picture here
Answered by unknown - Sat Aug 30 20:21:01 2008
Q. What are the principles of physics behind the medieval weapon, ballista ? How is it operated >?
Asked by Pika Bear - Sat Aug 30 19:52:57 2008 - - 1 Answers - 0 Comments
A. What a neat weapon. make a good potato launcher. good picture here
Answered by unknown - Sat Aug 30 20:21:01 2008
How to solve maths and physics problems faster and more accurately?
Q. My solving speed of maths and physics problem is good but not so accurate. I want to increase speed as well as accuracy please help me.
Asked by vipul_n - Sun Jan 28 10:39:46 2007 - - 2 Answers - 1 Comments
A. Speed needs PRACTICE. Accuracy needs "complete, flawless" knowledge +PRACTICE (to remember to write what you have to mention). Study lots of examples.
Answered by supersonic332003 - Sun Jan 28 12:22:21 2007
Q. My solving speed of maths and physics problem is good but not so accurate. I want to increase speed as well as accuracy please help me.
Asked by vipul_n - Sun Jan 28 10:39:46 2007 - - 2 Answers - 1 Comments
A. Speed needs PRACTICE. Accuracy needs "complete, flawless" knowledge +PRACTICE (to remember to write what you have to mention). Study lots of examples.
Answered by supersonic332003 - Sun Jan 28 12:22:21 2007
From Yahoo Answer Search: 'physics'
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15x They also went on to show the X1600XT as 2x faster than Ageia and the X1900XTX being 9x faster Whatever the numbers they can put up a demo with a lot of rocks rolling down a hill Big grain of salt time there is no game that runs across Havok and PhysX right now so any numbers appear to be theoretical Same with games that run physics across NV and ATI hardware
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The day before yesterday I was having a conversation with my mother about what I should write about this week for Political . Physics. . I was contemplating complaining about how unfair it is that I may be in danger of losing my job because ...
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