Gold has a specific heat of 0.129 J/(g•°C). How many joules of heat energy are required to raise the temperature of 15 grams of gold from 22°C to 85°C?

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final