The hoover dam is a hydroelectric power plant that converts the energy of falling water into electricity. which of the following determines the amount of potential energy of the water stored in the reservoir of the dam? choose all that apply.
a. the electric potential energy of the water. b. the weight of the water c. the height of the water d. the temperature of the water (i think it's a and c but i'm not sure)
Answers: 2
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Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:
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Answers: 1
The hoover dam is a hydroelectric power plant that converts the energy of falling water into electri...
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