Arock falls off the edge of a cliff that is 145 m above the ground beneath it. for how long a time is the rock falling? assume air resistance is negligible.

i dont know but

explanation:

whoever your teacher is, deserves a raise for using pokemon as an example

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.