User Acccumulation

69 votes

Why does the speed of a ping pong ball increase when the space in which it can bounce decreases?

answered Jul 12, 2020 at 20:02

51 votes

Accepted

Why aren't satellites disintegrated even though they orbit earth within earth's Roche Limits?

answered May 15, 2019 at 15:05

38 votes

How do we get supersonic bullets?

answered Feb 4, 2019 at 17:34

36 votes

Accepted

Ambiguity in the definition of entropy

answered Apr 3, 2019 at 1:22

25 votes

Accepted

Why is there one fewer solar day per year than there are sidereal days?

answered Dec 14, 2021 at 3:35

21 votes

Why does a helium balloon rise?

answered May 30, 2019 at 18:32

21 votes

Is light actually faster than what our present measurements tell us?

answered Sep 5, 2018 at 18:52

19 votes

Why do I see a saddle in this picture of a computer screen?

answered Jul 16, 2018 at 22:31

19 votes

Accepted

If an earthquake can destroy buildings why it cant kill us according to physics?

answered Aug 24, 2019 at 19:48

14 votes

Is the focal length of a mirror always shorter than the radius of curvature?

answered Sep 10, 2018 at 20:43

14 votes

Accepted

If we use yellow light on a blue paper, what will the paper look like?

answered Jan 30, 2019 at 22:46

13 votes

Why can a wave be expressed with a sine function?

answered May 17, 2018 at 15:45

12 votes

Can rockets fly without burning any fuel with the help of gases under extreme pressure only?

answered Aug 31, 2020 at 19:25

12 votes

Meaning and validity of the mass-energy equivalence valid if we don't know the one-way speed of light?

answered Dec 6, 2020 at 22:07

10 votes

What actually is the vector of angular momentum?

answered Apr 30, 2019 at 20:07

10 votes

Why does fire make very little sound?

answered Sep 4, 2018 at 22:52

10 votes

Does artificial gravity based on centrifugal force stop working if you jump off the ground?

answered Dec 13, 2018 at 17:34

9 votes

Why do we reduce only current to prevent power loss? Why not voltage?

answered Oct 11, 2021 at 2:23

9 votes

Why don't humans perceive sound waves as twice the frequency they are?

answered Jul 19, 2019 at 17:47

8 votes

Why does a weather vane arrow point in the direction of the wind?

answered Jan 14, 2020 at 18:22

8 votes

Would visible light still be in a separate classification if we saw "colors" in a different wavelength?

answered Feb 10, 2020 at 5:12

8 votes

Is there a frame of reference in which I was born before I was conceived?

answered Mar 4, 2019 at 17:23

7 votes

A planet with a square orbit?

answered Feb 3, 2022 at 19:52

7 votes

Can a black coating increase the efficiency of a heat dissipator?

answered Oct 2, 2018 at 17:35

7 votes

Is force due to electric field instantaneous? If not then why?

answered Jun 1, 2018 at 21:35

6 votes

Does Newtonian mechanics work in polar coordinates?

answered Dec 24, 2021 at 21:18

6 votes

Is speed of sound same for all inertial frames?

answered Sep 1, 2021 at 4:45

6 votes

What actually is white light?

answered Jan 9, 2021 at 18:49

6 votes

Accepted

Equation of capacitance of a capacitor

answered Aug 30, 2021 at 5:05

6 votes

Accepted

Statistical mechanical perspective of entropy in this computer simulation

answered Dec 7, 2018 at 21:58

Stack Exchange Network

281 Answers

Why does the speed of a ping pong ball increase when the space in which it can bounce decreases?

Why aren't satellites disintegrated even though they orbit earth within earth's Roche Limits?

How do we get supersonic bullets?

Ambiguity in the definition of entropy

Why is there one fewer solar day per year than there are sidereal days?

Why does a helium balloon rise?

Is light actually faster than what our present measurements tell us?

Why do I see a saddle in this picture of a computer screen?

If an earthquake can destroy buildings why it cant kill us according to physics?

Is the focal length of a mirror always shorter than the radius of curvature?

If we use yellow light on a blue paper, what will the paper look like?

Why can a wave be expressed with a sine function?

Can rockets fly without burning any fuel with the help of gases under extreme pressure only?

Meaning and validity of the mass-energy equivalence valid if we don't know the one-way speed of light?

What actually is the vector of angular momentum?

Why does fire make very little sound?

Does artificial gravity based on centrifugal force stop working if you jump off the ground?

Why do we reduce only current to prevent power loss? Why not voltage?

Why don't humans perceive sound waves as twice the frequency they are?

Why does a weather vane arrow point in the direction of the wind?

Would visible light still be in a separate classification if we saw "colors" in a different wavelength?

Is there a frame of reference in which I was born before I was conceived?

A planet with a square orbit?

Can a black coating increase the efficiency of a heat dissipator?

Is force due to electric field instantaneous? If not then why?

Does Newtonian mechanics work in polar coordinates?

Is speed of sound same for all inertial frames?

What actually is white light?

Equation of capacitance of a capacitor

Statistical mechanical perspective of entropy in this computer simulation