I would say your answer to this question would be D
Answer:
D. 3 psi
Explanation:
Pressure is defined as force acting per unit area and is numerically expressed as:

where P represent pressure, F is force and A is area where the force acts. Substituting 300 lb for force and 100 sq.in for area then pressure,

Therefore, from the choices given, option D, 3psi is the right choice.
Answer:


Explanation:

A) Initial kinetic energy of proton

B) How close does the proton get to the line of charge?
Potential energy and kinetic energy are related as:

Change in voltage is
