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Results tagged with momentum
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user 368753
In introductory mechanics, the momentum of a particle is its mass times its velocity. In electrodynamics, the momentum of a field is proportional to the cross-product of the electric field with the magnetic field. In special relativity, momentum is generalized to four-momentum.
1
vote
Accepted
Relationship between velocity and momentum change
Since the person struck by the faster car will receive a greater force from the impact than the other person does, they will experience a greater acceleration that results in a greater momentum. … Since momentum is conserved, this means that the fast car lost more momentum than the slow car did.
The force of an impact increases with the speed. …
- 1,805
0
votes
Is there an official name for "Lorentz Pairs" like energy and momentum?
Electric and magnetic fields unified into the EM field tensor, energy and momentum unified into the stress-energy tensor, space and time unified into the metric tensor, etc. …
- 1,805
8
votes
Are all conservation of momentum scenarios simply particles bouncing on walls?
The key part of how propulsion of any kind works is that there must be a non-zero momentum flux. … That is, the momentum of that which enters can not be the same as that which leaves if you want the apparatus itself to gain any momentum from the operation. …
- 1,805
1
vote
At near light speeds, are small objects in your path a problem?
Sorry, but your question is flawed.
You said that by the time of the impact, you caught up to the other ship such that it has no velocity relative to you (matching speed).
Assuming your ship isn't bui …
- 1,805
14
votes
Accepted
Why is compton scattering inelastic?
The definition of inelasticity differs between dynamics and particle physics.
In the former, inelasticity refers to the loss of kinetic energy in the system as a whole, as some is lost (e.g. heat).
In …
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