Physics
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Puk
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All Questions Answers
Score Newest
answer
48
Why do higher harmonics have a lower amplitude than the fundamental frequency?
Jul 5, 2020
answer
34
Is it possible to convert gravitational energy directly into electrical energy?
May 1, 2022
answer
25
Does rigid body rotation contradict Newton's first law?
May 13
answer
18
Does amplitude really go to infinity in resonance?
Apr 16, 2022
answer
17
Does Hooke's Law apply to all springs?
Mar 6
answer
15
Why isn't the Doppler effect (for sound waves) symmetric with respect to source and receiver?
Jun 12, 2020
answer
14
What is the concept of hole in semiconductor physics?
Mar 13
answer
14
Why is the kinetic energy for non-relativistic velocities not described by $KE=mc^2$?
Oct 27, 2020
answer
12
Is 13 really the answer for the "Devil's problem" in physics (a rolling tube with a rod)?
Jun 27, 2020
answer
12
Why do capacitors in series have same charge?
May 30

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