Which of the following statements about geothermal energy is not true?
a.
it is not a practical source of energy.
b.
it is an important source of energy in volcanically active areas.
c.
it works best when the magma pool is near the surface of earth.
d.
it is a renewable source of energy.
i know its not c

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Steam is generated in a boiler of a cogeneration plant at 10 mpa and 450°c at a steady rate of 5 kg/s. in normal operation, steam expands in a turbine to a pressure of 0.5 mpa and is then routed to the process heater, where it supplies the process heat. steam leaves the process heater as a saturated liquid and is pumped to the boiler pressure. in this mode, no steam passes through a condenser, which operates at 20 kpa. (a) determine the power produced in the turbine and the rate at which process heat is supplied in this mode. (b) determine the power produced in the turbine and the rate of process heat supplied if only 60 percent of the steam is routed to the process heater and the remainder is expanded to the condenser pressure. (3.32 mw; 9.69 mw; 4.25 mw; 5.82 mw)

What is the angular momentum of the bar about the axle?