Each second, 1200 m3 of water passes over a waterfall 100 m high. assuming that three-fourths of the kinetic energy gained by the water in falling is converted to electrical energy by a hydroelectric generator, what is the power output of the generator? (note that 1 m3 of water has a mass of 1000 kg).
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Physics, 22.06.2019 10:30
What are two different ways you could find the value of a? explain these methods.
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Physics, 22.06.2019 14:40
Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?
Answers: 3
Physics, 22.06.2019 21:10
Aspecified volume of space contains an electric field for which the magnitude is given by e=e0cos(Ļt). suppose that e0 = 20 v/m and Ļ = 1.0 Ć 107 sā1. part a what is the maximum displacement current through a 0.80 m2 cross-sectional area of this volume? express your answer with the appropriate units. idisp,max i d i s p , m a x = nothing nothing request answer part b how would this area have to be oriented relative to the electric field to get this maximum displacement current?
Answers: 2
Each second, 1200 m3 of water passes over a waterfall 100 m high. assuming that three-fourths of the...
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