If you watch a train go by at 20 m/s, at what speed will the people sitting on the train be moving relative to you? Would someone walking toward the back of the train have a greater or lesser speed relative to you? Explain.

Greater speed

Explanation:

The acceleration would launch much faster at 20 hope helped a little

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.

ice to water 1 water to vapour 2 latent heat