Please answer this I have 5 more minutes!!..

Write a paragraph at least 10 sentences explaining how rocks are used today in society

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j

How many joules of heat are required to raise thetemperature of 750 g of water from 11.0 °c to 19.0 °c?