User Puk

48 votes

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

answered Jul 5, 2020 at 5:58

35 votes

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

answered May 1, 2022 at 6:50

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

13 votes

What is the concept of hole in semiconductor physics?

answered Mar 13 at 8:29

13 votes

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

answered Oct 27, 2020 at 19:25

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

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

6 votes

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

answered Nov 3, 2020 at 2:38

6 votes

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

answered Mar 28, 2022 at 5:05

6 votes

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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

Do accelerated moving electrons radiate electromagnetic energy?

answered Jul 21, 2019 at 1:18

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

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Addition of forces on a rigid body instead of a point

answered yesterday

5 votes

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About the Fermi-Dirac distribution

answered Jun 16, 2020 at 21:47

5 votes

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

answered Aug 10, 2019 at 9:00

5 votes

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Which law of thermodynamics is broken here?

answered May 17, 2022 at 4:15

5 votes

Why is energy not conserved instantaneously in electromagnetic waves?

answered Mar 14 at 7:40

5 votes

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Apparent extension of magnets

answered Oct 31, 2020 at 17:38

4 votes

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Does my work suggest that the buoyancy force isn't generally just the pressure exerted on a body?

answered Oct 23, 2020 at 21:35

4 votes

Is there a magnetic field around a fully charged capacitor?

answered Mar 22, 2022 at 11:12

4 votes

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Can we make electron drift velocity faster than light by reducing area of resistor?

answered May 1, 2022 at 5:42

Stack Exchange Network

313 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 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?

What is the concept of hole in semiconductor physics?

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

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)?

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

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

Do accelerated moving electrons radiate electromagnetic energy?

Differences in Double slit experiment and 2 slit Diffraction

Newton's Second Law in vertical launch of a rocket

Addition of forces on a rigid body instead of a point

About the Fermi-Dirac distribution

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

Which law of thermodynamics is broken here?

Why is energy not conserved instantaneously in electromagnetic waves?

Apparent extension of magnets

Does my work suggest that the buoyancy force isn't generally just the pressure exerted on a body?

Is there a magnetic field around a fully charged capacitor?

Can we make electron drift velocity faster than light by reducing area of resistor?