According to the picture, how would the gravitational potential energy of the car change if its weight was doubled? a) the gravitational potential energy would be doubled. b) the gravitational potential energy would stay the same c) the gravitational potential energy would be cut in half. d) the gravitational potential energy would be increased by 750.

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.6 m below the tank bottom which is a = 6.7 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute). report your answer in meters to two decimal places.