A 23 kg mass is attached to a rope that is wound around a 0.050 m radius cylinder at the top of a well. Find the torque on the cylinder due to the mass.

An electric current is flowing through the cord below. what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?