Answer:

Explanation:
Force on an electron while it moves through constant electric field is given as





now by work energy theorem we can say
Work done by electric field = kinetic energy of the electron



To solve this problem it is necessary to address the concepts related to Torque as a function of the force and distance where it is applied and the moment of inertia from which the torque, moment of inertia and angular acceleration are related.
By definition the torque is defined as

Where,

F = Force
r = Radius
For our values we have:



Consequently the calculation of the moment of inertia would then be given by the relationship


Replacing with our values


The moment of inertia of the boxer's forearm 
What do you mean you need to be more specific
Answer:
When Magenta light is shown on a green surface, it looks black.
Explanation:
It absorbs the Magenta light and also reflects none of the light.
Answer:
b. The normal force between the molecules of the paper is overcome by the contact force of the hands.
Explanation:
The paper molecules are held together by a weak bond. When the student holds the paper on both sides with the center of the paper in between, the student applies two equal forces in the opposite direction of the paper making the paper molecules weaken and separate.