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two 15,000 litre water tanks and put one on a frame 3m higher than the other, a small pump which is 85% efficient ,a small turbine which is 90% efficient when providing a maximum output of 600 watts.
a) What percentage of the input energy needed to pump the water up to the top tank could you recover from the turbine as the water ran back to the bottom tank?
b) What is the maximum amount of energy your water tank system could store?
c) With what velocity would the water be flowing in to the turbine at the moment just before the top tank became empty?
d) If you could get the turbine to output 42W at 12V to light three fluorescent globes how long would they be lit for.
A series ac circuit is shown. The inductor has a reactance of 80 Omega and an inductance of 200 mH. A 90- Omega resistor and a capacitor whose reactance is 130 Omega , are also in circuit. The rms current in the circuit is 1.3A. What is the phase ..
A 0.600 mole sample of an ideal gas is at a temperature of 303 K at atmospheric pressure. Calculate the volume occupied by the gas
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Two metal spheres, each of mass 14 g and initially at rest, are dropped from a height of 6 m in an evacuated chamber. One sphere has a charge of +50 ?C, and the other has a charge -50 C.
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If the lamp's 215 W output is focused on a person's shoulder, over a circular area 25.0 cm in diameter, Find the peak magnetic field strength
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The mass of Jupiter is 300 times that of the earth, and the diameter is 11 times that of the earth, find the acceleration due to gravity on Jupiter's surface
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The sun can be considered an ideal blackbody radiator at a temperature of 5900K, What is the peak wavelength of the distribution
The outer edge of the grooved area of a long-playing record is at a radial distance 35 cm from the center; What is the radial speed of the needle
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