Joe leans against a lamppost with a force of 200 N. The lamppost does not move. How much work does he do?

Physics

1 answer:

hoa [83]3 years ago

6 0

Answer:

No work

Explanation:

He is not moving the lamppost as the lamppost cannot move to begin with.

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(a) If a proton with a kinetic energy of 6.2 MeV is traveling in a particle accelerator in a circular orbit with a radius of 0.5

Tju [1.3M]

Answer:

The fraction of its energy that it radiates every second is $3.02\times10^{-11}$ .

Explanation:

Suppose Electromagnetic radiation is emitted by accelerating charges. The rate at which energy is emitted from an accelerating charge that has charge q and acceleration a is given by

$\dfrac{dE}{dt}=\dfrac{q^2a^2}{6\pi\epsilon_{0}c^3}$