Two balls have their centers 2.2 m apart. One ball has a mass of 4.5 kg. The other has a mass of 9.5 kg. What is the gravitational force between them?

Explanation:

Given

Distance between two balls is

mass of first ball

mass of second ball

Gravitational force between two forces is given by

Substituting values

where G=gravitational constant

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.