User Dale - Physics Stack Exchange

26 votes

Why is it said that light can travel through empty space?

answered Feb 10, 2021 at 17:48

25 votes

Why should momentum be conserved in special relativity?

answered Sep 28, 2021 at 0:16

25 votes

How does the speed of electricity become the same as the speed of light?

answered Jun 6, 2021 at 4:05

25 votes

How is pressure an intensive property?

answered Dec 19, 2018 at 2:57

25 votes

Why does magnetic force only act on moving charges?

answered Feb 22, 2023 at 17:02

25 votes

If water is nearly as incompressible as ground, why don't divers get injured when they plunge into it?

answered Jul 17, 2022 at 13:01

25 votes

Why is radioactive half-life constant?

answered Jul 20, 2022 at 3:18

24 votes

Work done in assembling a point charge is infinite

answered Sep 20, 2020 at 12:29

24 votes

How do forces 'know' they need to move when a system is in motion?

answered Sep 13, 2020 at 3:01

23 votes

How do stars produce energy if fusion reactions are not viable for us?

answered Oct 28, 2021 at 12:26

23 votes

Do Maxwell's equations predict the speed of light exactly?

answered Nov 25, 2018 at 17:54

23 votes

In relativity, how do clocks get out of sync on a physical level?

answered Nov 22, 2022 at 12:36

23 votes

Is interference of light a quantum phenomenon?

answered Feb 7, 2023 at 20:00

23 votes

Is a 1D universe with a 90° turn 1D or 2D?

answered Aug 4, 2023 at 2:47

23 votes

Definition of four-velocity: why define it with proper time of the object?

answered Nov 14, 2023 at 12:43

22 votes

Accepted

Is there an explanation for action-reaction law?

answered Sep 25, 2022 at 12:30

22 votes

Accepted

Why are the Michelson-Morley experimental results interpreted more broadly than the scope of the tested medium?

answered Apr 4 at 14:05

21 votes

Alternate explanation for energy flow in electricity as explained in this video

answered Nov 20, 2021 at 16:24

21 votes

Accepted

Is there a magnetic field around a fully charged capacitor?

answered Mar 22, 2022 at 11:22

21 votes

How is Newton's 3rd law of action reaction forces valid when a man pulls a massless spring?

answered Apr 24, 2023 at 10:56

21 votes

Why doesn't current pass through a resistance if there is another path without resistance?

answered Oct 28, 2018 at 12:43

21 votes

When a car accelerates relative to earth, why can't we say earth accelerates relative to car?

answered Sep 7, 2021 at 22:23

20 votes

The direction of the velocity of a body can change when its acceleration is constant. How is it possible since acceleration is a vector quantity?

answered Sep 15, 2021 at 3:40

20 votes

Is there a field of physics that attempts to understand the properties of light from a single perspective?

answered May 29, 2021 at 11:43

20 votes

Does speed of light being constant make time a derived unit?

answered Oct 8, 2020 at 3:55

20 votes

Accepted

Does converting rest mass to energy instantly change the gravitational attraction it exerts?

answered Dec 10, 2018 at 22:09

20 votes

Accepted

Contradictions of explanations for the speed of light

answered Jul 14, 2020 at 2:55

18 votes

Gravitational advantage of outer planets in war

answered Nov 10, 2018 at 23:42

18 votes

Do black holes violate the conservation of mass?

answered Mar 9, 2019 at 16:23

18 votes

Is there a proof that the set of real numbers can exactly represent distances?

answered May 4, 2019 at 16:56

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2,342 Answers

Why is it said that light can travel through empty space?

Why should momentum be conserved in special relativity?

How does the speed of electricity become the same as the speed of light?

How is pressure an intensive property?

Why does magnetic force only act on moving charges?

If water is nearly as incompressible as ground, why don't divers get injured when they plunge into it?

Why is radioactive half-life constant?

Work done in assembling a point charge is infinite

How do forces 'know' they need to move when a system is in motion?

How do stars produce energy if fusion reactions are not viable for us?

Do Maxwell's equations predict the speed of light exactly?

In relativity, how do clocks get out of sync on a physical level?

Is interference of light a quantum phenomenon?

Is a 1D universe with a 90° turn 1D or 2D?

Definition of four-velocity: why define it with proper time of the object?

Is there an explanation for action-reaction law?

Why are the Michelson-Morley experimental results interpreted more broadly than the scope of the tested medium?

Alternate explanation for energy flow in electricity as explained in this video

Is there a magnetic field around a fully charged capacitor?

How is Newton's 3rd law of action reaction forces valid when a man pulls a massless spring?

Why doesn't current pass through a resistance if there is another path without resistance?

When a car accelerates relative to earth, why can't we say earth accelerates relative to car?

The direction of the velocity of a body can change when its acceleration is constant. How is it possible since acceleration is a vector quantity?

Is there a field of physics that attempts to understand the properties of light from a single perspective?

Does speed of light being constant make time a derived unit?

Does converting rest mass to energy instantly change the gravitational attraction it exerts?

Contradictions of explanations for the speed of light

Gravitational advantage of outer planets in war

Do black holes violate the conservation of mass?

Is there a proof that the set of real numbers can exactly represent distances?