How much energy is available each time reservoir is emptied

Assignment Help Physics
Reference no: EM13543476

Large fossil fuel or nuclear electrical power plants operate most economically when run at full capacity 24 hours a day. Excess electrical energy can be "stored" and recovered by pumping water into a reservoir on top of a mountain and letting it fall through turbines during periods of peak demands. At such a facility, the water falls an average distance of 250 m. The reservoir has a surface area of 1.3 km^2 and a depth averaging 10m.

a.) how much energy is available each time the reservoir is emptied?

b.) if it is emptied over a period of 10 hours, and 80 percent of the energy is converted into electrical energy, what is the power generated? 

Reference no: EM13543476

Questions Cloud

What is the value of this constant-coils have a radius : These coils have a radius R = 33 cm. The distance between the coils is, of course, also d = 33 cm (otherwise they would not form a Helmholtz system). Each coil has 72 turns. As explained above, we will not measure the current but rather the voltag..
What is the maximum value of the applied force F : Minh pulls a 10-kg crate on a rough inclined ramp with a cable tension F, directed towards the top and parallel to the plane. The angle of inclination of the plane is 30 and the coefficients of static and kinetic friction between the block and the in..
Find the maximum force of static friction : A shravani pulls a 5-kg block along a rough horizontal floor with a force, F, which makes an angle, theta = 30 above the horizontal, as shown. The coefficients of static and kinetic friction between the block and the floor are 0.5 and 0.3 respecti..
Transverse waves on a string have wave speed : Transverse waves on a string have wave speed , amplitude , and wavelength . The waves travel in the -x direction, andat the end of the string has its maximum upwarddisplacement. Find the frequency of these waves.Find the wave number of these waves..
How much energy is available each time reservoir is emptied : Large fossil fuel or nuclear electrical power plants operate most economically when run at full capacity 24 hours a day. Excess electrical energy can be "stored" and recovered by pumping water into a reservoir on top of a mountain and letting it fall..
The elevator is moving downward at constant speed : For each of the following situations, evaluate whether the relationship between the given force is less than, greater than, equal to, or can't tell and explain why that would be the case. The elevator is moving downward at constant speed.
Find the magnitude of impulse that bat imparts to the ball : A 146 gram baseball is hit toward the left by a bat. The magnitude of the force the bat exerts on the ball as a function of time is shown in the figure below (Figure 1) .
Determine the waves amplitude-waves frequency : Determine the wave's amplitude. Determine the wave's wavelength. Determine the wave's frequency. Determine the wave's speed of propagation. Determine the wave's direction of propagation.
Calculate and interpret an upper confidence bound : Data on the modulus of elasticity obtained 1 minute after loading in a certain configuration and 4 weeks after loading for the same lumber specimens is presented here.

Reviews

Write a Review

Physics Questions & Answers

  What is the relative speed of the two reference frames

In a certain reference frame, a particle with momentum of 7 MeV/c and a total energy of 10 MeV. What is the relative speed of the two reference frames

  What is the speed at which the librarian raised the shelf

A copy of The History of the Decline and Fall of the Roman Empire by Edward Gibbon lies exactly in the middle of an otherwise empty 6.1m long bookshelf in Robarts Library. What is the speed at which the librarian raised the shelf

  Find the altitude of the plane

A plane flies parallel to the ground at a speed of 1.15 times the speed of sound. What is the altitude of the plane

  How many moles of helium does it hold

A container with a one-liter capacity at 27°C is filled with helium to a pressure of 2 atm. How many moles of helium does it hold

  Find the speed of the car just before it lands safely

A 10000 N car comes to a bridge during a storm and finds the bridge washed out. The 750N driver must get to the other side, What is the speed of the car just before it lands safely on the other side

  What is the height y to which the spans rise

A chair of weight 125 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 35.0 N directed at an angle of 42.0 below the horizontal and the chair slides along the floor. Using Newton's laws, compute..

  Determine the speed at the lower level

Water is moving with a speed of 5.4 m/s through a pipe with a cross-sectional area of 4.8 cm2. What is the speed at the lower level

  Calculate the drift speed of the electrons in the wire

An aluminum wire having a cross-sectional area equal to 2.70 10-6 m2 carries a current of 6.50 A. The density of aluminum is 2.70 g/cm3. calculate the drift speed of the electrons in the wire

  What is the factor by which the intensity increases

If your roommate turns up the radio, increasing the sound level from 70 dB to 82 dB, what is the factor by which the intensity (in W/m^2) increases

  Compute coefficient of kineticfriction between box and floor

An 77 box of oranges is being pushed across a horizontal floor. As it moves, it is slowing at a constant rate of 0.90 each second. compute the coefficient of kinetic friction between the box and floor

  Find how high above the water was she

On a hot summer day a young girl swings on a rope above the local swimming hole. how high above the water was she when she let go of the rope

  Difference between newtonian fluids and non newtonian fluids

What is the basic difference between Newtonian Fluids and Non newtonian fluids?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd