A satellite orbits Earth at a distance of 3rEarth above Earths surface. What is the magnitude of gravitational field strength at the point where the satellite is?

Uppose we consider the system of the three capacitors as a single "equivalent" capacitor. given the charges of the three individual capacitors calculated in the previous part, find the total charge qtot for this equivalent capacitor. express your answer in terms of v and c.

What happens when a rubber rod is rubbed with a piece of fur?

The radius of a sphere is increasing at a rate of 9 cm/ sec. find the radius of the sphere when the volume and the radius of the sphere are increasing at the same numerical rate.