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Physics
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Puk
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View all questions and answers
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50
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
33
Based on my calculations, we cannot see the Earth from the ISS. Obviously it's wrong. Why?
Nov 15, 2023
answer
25
Does rigid body rotation contradict Newton's first law?
May 13, 2023
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, 2023
answer
15
Why is the kinetic energy for non-relativistic velocities not described by $KE=mc^2$?
Oct 27, 2020
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, 2023
answer
13
Is 13 really the answer for the "Devil's problem" in physics (a rolling tube with a rod)?
Jun 27, 2020
Top network posts
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7
Why is there sometimes a resistor just before ground?
5
Saturation region of BJT
5
Can a telescope ever increase the apparent luminance of an extended object?
5
Trying to use Canon 60D DSLR with Skywatcher 130P. Can't focus image