Water falls over a dam of height h with a mass flow rate of IV , in units of kilograms per second. (a) Show that the power available from the water is                                               P = IVghwhere g is the free-fall acceleration. (b) Each hydroelectric unit at the Grand Coulee Dam takes in water at a rate of 8.50 × 105 kg/s from a height of 87.0 m. The power developed by the falling water is converted to electric power with an efficiency of 85.0%. How much electric power does each hydroelectric unit produce?

Q: Water is pumped up from the Colorado River to supply Grand Canyon Village, located on the rim of the…

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Q: Asap

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A: a) Write the expression for the power and substitute the required values.

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A:

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A:

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A:

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Q: Hoover Dam on the Colorado River is the highest dam in the United States at 221 m, with an output of…

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A:

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A: Solution:   Given Values,   Velocity(v)=360 Km/hr=360×10003600 m=100 m/s Airplane velocity (v1)=300…

Spring Potential Energy

The potential energy is the energy possessed by a body by virtue of its position or the energy held by the object due to its position relative to other objects, its force like stresses, charge, and other factors affecting the particles of the body. The potential energy is the measure of the net work done by or on the body. The spring potential energy is the potential energy stored due to the deformation of an elastic spring and this elasticity is due to the stretched spring. The elasticity is the ability of a solid-state matter to come back to its equilibrium position or original position after any kind of external force is acted on it. It is also known as Elastic potential energy. The potential energy here is caused due to the displacement of the spring from its equilibrium position to another position and this potential energy is equal to the net work done due to the stretching of the spring. It also resembles the same mechanics of the oscillation of a simple pendulum, where due to the external force, the object moves from its equilibrium position to its maximum ends and the periodic motion continues till it comes back to the equilibrium position to rest.