Perhaps the most famous hydroelectric plant in the United States is Hoover Dam, placed on the Colorado River at the Arizona/Nevada border. This facility can generate about 2 GW of power (a lot). The water in this dam falls a distance of 500 ft to get to the turbines. Required:
At this power capacity, what is the volume of water passing through the system each second?

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Agas mixture consists of 8 kmol of h2 and 2 kmol of n2. determine the mass of each gas and the apparent gas constant of the mixture.

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.