When you enter a pool of water, you feel as though you weigh less. what causes this apparent change of weight? a. buoyant force b. cohesive force c. adhesive force d. pressure

Buoyant force.

Explanation:

When we are immersed in a pool of water, we experiences a force pushing us in upward direction due to which our weight is decreased and this force is called Buoyant force.

This is also called upthrust.

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.