Asmall hydroelectric plant has an input water pressure of 85 psi and an output pressure of 3 psi. note that the direction of the water flow is against the pressure drop when the water is causing the turbine to turn. how much work is done by the water when 8500 gallons flow through the turbine?

Shelly experiences a backward jolt when the driver starts the school bus. which of the following explains this phenomenon? a. the inertia of shelly b. the inertia of the bus c. the normal force of the seats on shelly d. the net force acting on shelly in a backward direction e. a zero net force acting on shelly

Most of the volume of an atom is occupied by the

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.