D), because the roller coaster it's falling, therefore, losing height, but gaining velocity
In order to make an electric current flow it is necessary to have a source of the current or source of free electrons and also the circuit should be a close one or complete. When there is a break in a circuit, no current would flow in the whole system.
Yes it would hope i helped !
Yes, the magnetic field of a wire carrying a current forms a cylinder shape around the wire, but that's not similar to the field of a bar magnet.
Answer:
if it is at a speed of 12.5 m / s it would take 2 minutes
Explanation:
