A TV with a power rating of 200 W uses 0.8 kWh in one day. For how many hours was the TV on during this day?

electric field is a function of 1/r^2

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

answer(20) psi;

a. spokes of a wheel.

as indicated in the question radial contains rad, also found in radius, so the fracture's would span the radius.