Q1. A swimming pool has dimensions 28.0 m 7.0 m and a flat bottom. The pool is filled to a depth of 1.90 m with fresh water.
(a) What is the force exerted by the water on the bottom?
(b) What is the force exerted by the water on each end? (The ends are 7.0 m.)
(c) What is the force exerted by the water on each side? (The sides are 28.0 m.)
Q2. The parallel metal plate of a capacitor is seperated by a distance of 0.5cm and is connected to a 90v battery. Find an electric field between them and the surface charge density?