A100gm bullet is fired into a 12 kg block which is suspended by a long cord, such that it can swing like a pendulum. if the bullet is embedded in the block and the block rises by 5cm, what was the speed of the bullet?

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer