Linked Questions

4
votes
2answers
24k views

Increase in Mass with Velocity [duplicate]

I just had a confusion. Does the mass of the body actually increase when it is moving with a certain velocity? Or does it only look like the mass has increase to another observer. How can the actual ...
1
vote
1answer
3k views

How do Einstein’s equations support mass gain in particle accelerators? [duplicate]

Possible Duplicate: Why does the mass of an object increase when its speed approaches that of light? A charged particle that is accelerated through a particle accelerator like CERN undergoes this ...
1
vote
1answer
128 views

Does the mass of a particle increase with increasing velocity [duplicate]

In the chapter of magnetic effect of current I came across cyclotron limitations. Statement: The cyclotron cannot accelerate the particles to velocities as high as comparable to the speed of light. ...
0
votes
1answer
160 views

Relativistic momentum and mass [duplicate]

Is there even a relativistic mass or just relativistic momentum? How does one reason to prefer one over another? What is the problem with saying a hot gas will have more mass/inertia to it?
0
votes
1answer
105 views

Extra mass due to near light like speeds [duplicate]

Why does mass seem to increase as you near the speed of light?
-1
votes
0answers
34 views

Significance of relativistic mass [duplicate]

The mass which a body has on rest is called it's rest mass and the mass when it travels at some speed relative to a frame, it's mass increases by gamma factor. But I was thinking how actually can it's ...
1
vote
0answers
32 views

Mass dilation in general relativity [duplicate]

Does mass dilate in general relativity. For example if I was accelerating will my mass dilate? Thanks
26
votes
7answers
4k views

How come waves and particles can have energy without having mass?

I just want to point out that I'm still in highschool and I don't really have any advanced education within physics, however, this is something that has been on my mind. I may just be completely wrong ...
11
votes
5answers
31k views

Is $E^2=(mc^2)^2+(pc)^2$ correct, or is $E=mc^2$ the correct one?

I have been having trouble distinguishing these two equations and figuring out which one is correct. I have watched a video that says that $E^2=(mc^2)^2+(pc)^2$ is correct, but I do not know why. It ...
0
votes
6answers
14k views

What does it mean to say that mass “approaches infinity”?

What does it mean to say that mass "approaches infinity"? I have read that mass of a body increases with the speed and when the body reaches the speed of light, the mass becomes infinity. What ...
8
votes
3answers
3k views

Special Relativity and $E = mc^2$

I read somewhere that $E=mc^2$ shows that if something was to travel faster than the speed of light then they would have infinite mass and would have used infinite energy. How does the equation show ...
8
votes
4answers
5k views

What matter in the original atom bomb is converted to energy?

When an atom bomb goes off some matter is converted to energy according to $E = m c^2$. I'd like to know exactly what matter in the original atom bomb is converted to energy. Is it protons, neutrons, ...
4
votes
3answers
8k views

Mass of particle near light speed in a medium

I am trying to get a common understanding from these two previous questions: Why does the mass of an object increase when its speed approaches that of light? What happens if light/particles exceeded ...
16
votes
3answers
3k views

Why the vacuum polarization does not decrease the speed of light?

On one hand, in the classical electrodynamics polarization of transparent media yields in lowering the speed of light by the factor of $n=\sqrt{\epsilon_r \mu_r}$ (refractive index). On the other, in ...
-1
votes
3answers
11k views

Frequency Of Light [closed]

I am confused on few topics... What is meant by "Frequency of Light"? Does the Photon(s) vibrate, that is known as its frequency? If the Photons vibrate, then they have a specific frequency, then ...

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