Hydro-electric Power Output and Conservation of Energy
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1. A man can throw a stone of mass 0.5kg upwards with a velocity of 10m/s. Using the conservation of energy equation find the maximum height that the stone can reach.
2. A hydroelectric power station has water falling from a reservoir at a height of 100 m above the turbine. If the water flow is 0.25 m3/s and the overall efficiency of the turbine plant is 60%, what is the electric power output?
Take g = 9.8 m/s2.
1 m3 of water has a mass of 1000 kg.
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Solution Summary
Hydro-electric Power Output and Conservation of Energy are investigated.
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When you throw a stone you are giving it a kinetic energy which is given by 0.5 m V^2
where m is the mass and v is its velocity.
If it is thrown up vertically, then it can go up to point at which its KE is ...
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