When a rocket accelerates through space is there work done?

Aball bearing at 220.0 °c is dropped into a cup containing 250.0 g of water at 20.0 °c. the water and ball bearing come to a temperature of 30.0 °c. what is the heat capacity of the ball bearing in j/°c? (hint: how are the algebraic signs of q related for the ball bearing and the water? )

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created

Which statements did both aristotle and ptolemy assume? check all that apply.