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Jimmy360
  • Member for 7 years, 3 months
  • Last seen more than a week ago
20 votes

How does a spacecraft enter Earth's atmosphere?

18 votes

$F=ma$, so if acceleration is zero the force must also be zero?

8 votes
Accepted

Do shadows have mass?

8 votes
Accepted

Would a pipe from the surface to the Earth's exosphere suck all atmosphere to the space?

7 votes

How do grandfather clocks keep going?

7 votes

Does "ac current" mean that the electricity goes left and right or just changes polarity?

7 votes
Accepted

Deriving the Lorentz factor $\gamma$

6 votes
Accepted

Different materials have different temperatures?

5 votes

Why bumble bee cannot fly aerodynamically?

5 votes

In circular motion, with a constant distance, why does the mass of the orbitting object have no effect on its revolution at all?

5 votes

Where do photons go when they are absorbed?

5 votes
Accepted

Difference between Speed and Velocity

4 votes

Where does General Relativity (GR) fail experimentally? Experimental shortcomings of GR?

4 votes
Accepted

In circular motion, what's preventing me from calculating the circumference of the circle, dividing it by time to find the speed of the object?

4 votes

What exactly is fire?

4 votes
Accepted

Why can a magnet setup not fly?

4 votes

Is Einstein's characterization of "time" as "the position of the little hand of my watch" definitive and binding in the RT?

4 votes

Does nucleus itself has its own motion?

3 votes
Accepted

Have we really measured the wavelength of light?

3 votes
Accepted

How does the number of electrons and protons determine the melting point and hardness of a solid?

3 votes

Non zero accetion, varying speed

3 votes

Spectral line formula

3 votes

How can we know that a particular charge is positive or negative?

3 votes
Accepted

Could a photon travel faster than the speed of light in vacuum?

3 votes
Accepted

Does the Earth revolve around the Sun?

3 votes

Why does the system move until equal temperatures are obtained?

2 votes

When momentum coincides with impulse

2 votes

How does water-soluble packaging work?

2 votes

In $1$-dimensional space, how would the gravity generated by an electron affect a photon moving away from the electron if the photon can’t slow down?

2 votes
Accepted

What are these wavish patterns around atoms on microscopic images?

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