Answer:
jao es fac esi ylo saa lbes
Explanation:
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Answer:

Explanation:
The cabinet does not move: this means that the net force acting on it is zero.
Along the horizontal direction, we have two forces:
- The push exerted by Bob, F = 200 N, forward
- The frictional force,
, which acts in the opposite direction (backward)
Since the net force must be zero, we have:

So solving the equation we can find the magnitude of the friction force:

It takes work to push charge through a change of potential.
There's no change of potential along an equipotential path,
so that path doesn't require any work.
A nuetron is the lightest subatomic particle