If a current of 2.5 Ampere flow through a circuit in 15 minutes calculate amount of charge through a crcuit

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

As the distance from a magnet increases, what happens to the magnet force?

Acentrifuge in a medical laboratory rotates at an angular speed of 3,700 rev/min. when switched off, it rotates through 54.0 revolutions before coming to rest. find the constant angular acceleration (in rad/s2) of the centrifuge. your response is within 10% of the correct value. this may be due to roundoff error, or you could have a mistake in your calculation. carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. rad/s2