User Puk

48 votes

Accepted

Why do higher harmonics have a lower amplitude than the fundamental frequency?

answered Jul 5, 2020 at 5:58

34 votes

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Is it possible to convert gravitational energy directly into electrical energy?

answered May 1, 2022 at 6:50

25 votes

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Does rigid body rotation contradict Newton's first law?

answered May 13 at 16:44

18 votes

Does amplitude really go to infinity in resonance?

answered Apr 16, 2022 at 19:30

17 votes

Does Hooke's Law apply to all springs?

answered Mar 6 at 3:33

15 votes

Why isn't the Doppler effect (for sound waves) symmetric with respect to source and receiver?

answered Jun 12, 2020 at 22:38

14 votes

Accepted

Why is the kinetic energy for non-relativistic velocities not described by $KE=mc^2$?

answered Oct 27, 2020 at 19:25

14 votes

What is the concept of hole in semiconductor physics?

answered Mar 13 at 8:29

12 votes

What's the point of an RMS value?

answered Jun 14, 2020 at 17:55

12 votes

Is 13 really the answer for the "Devil's problem" in physics (a rolling tube with a rod)?

answered Jun 27, 2020 at 1:39

12 votes

Why do capacitors in series have same charge?

answered May 30 at 0:01

12 votes

Accepted

What is actually the clear, precise and world-wide accepted definition of TENSION FORCE?

answered Apr 27 at 16:35

10 votes

When a ball on a rope swings in a circle, is there both centripetal force and tension force?

answered Jul 19, 2019 at 23:04

9 votes

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What is the difference between uniform velocity and constant velocity?

answered Jul 21, 2019 at 10:07

9 votes

Why is the electrostatic force felt in straight lines?

answered Oct 28, 2020 at 14:11

9 votes

Least squares fit versus averaging

answered Mar 2, 2022 at 18:00

9 votes

Accepted

How to cool a liquid the most efficient way by submerging solids into it?

answered Apr 24 at 5:04

8 votes

If inductors block AC then how are they used In LCR circuits?

answered May 30 at 5:31

8 votes

Accepted

Addition of forces on a rigid body instead of a point

answered Mar 25 at 6:38

7 votes

Do accelerated moving electrons radiate electromagnetic energy?

answered Jul 21, 2019 at 1:18

6 votes

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About the Fermi-Dirac distribution

answered Jun 16, 2020 at 21:47

6 votes

Differences in Double slit experiment and 2 slit Diffraction

answered Jun 21, 2020 at 19:38

6 votes

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Newton's Second Law in vertical launch of a rocket

answered Jun 21, 2020 at 20:23

6 votes

Where do gravitational field lines go exactly? We know where they start, but

answered Nov 3, 2020 at 2:38

6 votes

Accepted

Is $\vec{v} = \frac{2\pi r}{T}$ Referring to Tangential Speed or Velocity?

answered Mar 28, 2022 at 5:05

6 votes

Accepted

Difference between BATT and Voltage on multimeter

answered Mar 30, 2022 at 20:03

6 votes

Why does diffracted light in certain TVs get collimated in six straight or curved rays?

answered Apr 8, 2022 at 6:26

6 votes

Relation Between Gravitational Potential and Acceleration due to gravity

answered Jun 2, 2022 at 15:37

6 votes

Accepted

Simultaneously raising and lowering indices

answered Apr 29 at 23:28

6 votes

Accepted

Time period of a simple pendulum confusion

answered Apr 30 at 21:54

Stack Exchange Network

391 Answers

Why do higher harmonics have a lower amplitude than the fundamental frequency?

Is it possible to convert gravitational energy directly into electrical energy?

Does rigid body rotation contradict Newton's first law?

Does amplitude really go to infinity in resonance?

Does Hooke's Law apply to all springs?

Why isn't the Doppler effect (for sound waves) symmetric with respect to source and receiver?

Why is the kinetic energy for non-relativistic velocities not described by $KE=mc^2$?

What is the concept of hole in semiconductor physics?

What's the point of an RMS value?

Is 13 really the answer for the "Devil's problem" in physics (a rolling tube with a rod)?

Why do capacitors in series have same charge?

What is actually the clear, precise and world-wide accepted definition of TENSION FORCE?

When a ball on a rope swings in a circle, is there both centripetal force and tension force?

What is the difference between uniform velocity and constant velocity?

Why is the electrostatic force felt in straight lines?

Least squares fit versus averaging

How to cool a liquid the most efficient way by submerging solids into it?

If inductors block AC then how are they used In LCR circuits?

Addition of forces on a rigid body instead of a point

Do accelerated moving electrons radiate electromagnetic energy?

About the Fermi-Dirac distribution

Differences in Double slit experiment and 2 slit Diffraction

Newton's Second Law in vertical launch of a rocket

Where do gravitational field lines go exactly? We know where they start, but

Is $\vec{v} = \frac{2\pi r}{T}$ Referring to Tangential Speed or Velocity?

Difference between BATT and Voltage on multimeter

Why does diffracted light in certain TVs get collimated in six straight or curved rays?

Relation Between Gravitational Potential and Acceleration due to gravity

Simultaneously raising and lowering indices

Time period of a simple pendulum confusion