As of May 31, 2023, we have updated our Code of Conduct.
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Puk
  • Member for 5 years, 8 months
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48 votes
Accepted

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

35 votes
Accepted

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

25 votes
Accepted

Does rigid body rotation contradict Newton's first law?

18 votes

Does amplitude really go to infinity in resonance?

17 votes

Does Hooke's Law apply to all springs?

15 votes

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

14 votes

What is the concept of hole in semiconductor physics?

13 votes
Accepted

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

12 votes

What's the point of an RMS value?

12 votes

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

12 votes
Accepted

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

12 votes

Why do capacitors in series have same charge?

10 votes

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

9 votes
Accepted

What is the difference between uniform velocity and constant velocity?

9 votes

Why is the electrostatic force felt in straight lines?

9 votes

Least squares fit versus averaging

9 votes
Accepted

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

8 votes
Accepted

Addition of forces on a rigid body instead of a point

8 votes

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

6 votes
Accepted

Simultaneously raising and lowering indices

6 votes

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

6 votes
Accepted

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

6 votes
Accepted

Difference between BATT and Voltage on multimeter

6 votes

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

6 votes

Relation Between Gravitational Potential and Acceleration due to gravity

6 votes

Do accelerated moving electrons radiate electromagnetic energy?

6 votes

Differences in Double slit experiment and 2 slit Diffraction

6 votes
Accepted

Newton's Second Law in vertical launch of a rocket

5 votes
Accepted

About the Fermi-Dirac distribution

5 votes
Accepted

Will increase in flow rate increase the rate of cooling down?

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