Question 1 {1 point) What is the mass of a block of lead that is 30cm by 30cm by 60cm? Your Answer: Answer units Question 2 (1 point) Inside a pressurized tube there is air with a pressure of ?50,000Pa. If the top face of the tube has area 15cm2, how much force is pushing on the top face of the tube? Your Answer: Answer units Question 3 (1 point) A submarine is sitting at a depth of 180m below the surface of the ocean. If the surface atmosphere is 100.000Pa, what is the pressure acting on that submarine? Note, the ocean is filled with seawater, not freshwater. Your Answer: :3 Answer units