Answer:
D
Explanation:
From the formula of coulombs law F = Kq1q2/square of r, we can say the electric force is indirectly related to square of r
It is the speed at which a body moves without any interuptions (external forces etc)
Answer:

Explanation:
The force is equal to the negative of the derivative of the potential energy function:

In this problem, the potential energy function is

Therefore, the force function is:

So, adding the units of measurement,

Answer:
O'B. Good conductor of heat.
Explanation:
Plastic is not a good conductor of heat because it has no delocalized electrons it's surface to transfer heart.