How much power is theoretically available from a mass flow of 1 000 kg/s of water when it falls a vertical distance of 100 meters?
a. 980 kW
b. 98 kW
c. 4 900 W
d. 980 W
e. 9 600 W
A
You might also like to view...
Pulsar planets are _____
a. huge gas planets that could be classified as brown dwarfs b. asteroids captured from interstellar space c. observed, but not fully understood d. predicted, but have not been observed e. Earth-like, and may harbor life
A heat pump has a coefficient of performance that is 60% of the Carnot heat pump coefficient of performance. The heat pump is used to heat a home to 24.0°C during the winter with the low temperature reservoir at the outdoor temperature
At which outdoor temperature would it be more efficient to add the energy directly to the interior of the home than use it to run the heat pump? A) -25.2°C B) -154°C C) -40.0°C D) -83.4°C E) -4.00°C
An object is accelerating if it moves
1) with constant velocity 2) in a circular path 3) in a straight-line path because it is undergoing a change in its 4) speed. 5) direction. 6) net force.
A ray of light travels across a liquid-to-glass interface. If the indices of refraction for the liquid and glass are, respectively, 1.63 and 1.43, what is the critical angle at this interface?
a. Critical angle does not exist. b. 79.0° c. 61.3° d. 1.07° e. 90°