what is the relationship between the distance and the time squared as the Duster accelerated down the slope​

asthenosphere and convection

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.

your answer is, orbit around the nucleus