The size of the grid squares in the diagram are 10 meters long. Using this, calculate the average speed of the ball during its fall from the point of view of the crow. About how fast was it traveling during the last second of its fall from this perspective?

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.

e/c, where e is its total energy