a 20 kg boulder rests on the surface of the earth. assume the earth has mass 5.98 x 1024kg and g = 10 m/s2. what is the magnitude of the gravitational force that the boulder exerts on the earth?

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.

a 2,000 calorie based diet.