If 3 cups are sitting outside on a cold day, which cup will loose the most heat? Cup A starts a little above freezing, Cup B is initially room temperature, and Cup C is just below boiling. 1-Hot
2-Cold
3-Room
4-None, the heat doesn't change

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

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 electric field direction is defined by the direction of the force felt by (select one of the following answers): 1. a negative charge. 2. a positive charge. 3. both positive and negative charges.