Temperature can be described as a.) the same thing as heat energy b.) the amount of calories in a substance c.) an indirect measure of heat energy

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?

The energy equivalent of the rest mass of an electron is