A person is standing at the top of Copper Canyon. He jumps into the lake entering the water after 5s. What is the velocity when he hits the water? (show work)

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? )

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

If a star is moving toward earth, it is