Please help Which of the following is an example of heat energy being transformed into mechanical energy

A. An electric mixer being used to beat eggs

B. A person turning a crank to sharpen a pencil.

C. A car battery being used to power a car radio

D. Boiling water producing steam used to power a boat​

Abody of weight 60 kg is standing in a lift the lift going upward with a uniform velocity of 4.9 metre per second slows down and stops in two seconds then apparent weight of the body during the slow down process is

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.