What is the change in the kinetic energy of the bullet-block system as a result of the collision assuming the block is free to move

Act has a 1200: 5 or 240: 1 turns ratio. it is short circuited. what is the maximum current at 1200a primary if we put a 100ohm resistor across the secondary end of the ct. use it as current source circuit.

Aquarterback pedals 3.3meters southward and then run 5.7meters northward. whats the distance ? and whats the displacement?

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation