A hydroelectric dam holds back a lake of surface area 3.0�106m2 that has vertical sides below the water level. The water level in the lake is 150 m above the base of the dam. The density of water is 1000 kg/m3.

-How much total energy is stored in the lake? Take the gravitational potential energy to be zero at the base of the dam. (Hint: Break the lake up into infinitesimal horizontal layers of thickness dy, and integrate to find the total potential energy.) Express your answer using two significant figures.

-Express your answer in kilowatt-hours. Express your answer using two significant figures.

Pl asaaap ! match the term to the correct description. a type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling. a type of wave that transfers energy where the particles in the medium move parallel to the direction in which the energy is traveling. movement that is back and forth, like an equal sign = a type of wave that transfers energy where the particles in the medium move in a circle motion while the energy travels left or right. movement that is like a t transfers energy from one location to another 1. wave 2. parallel movement 3. perpendicular movement 4. transverse wave 5. longitudinal wave 6. surface wave

Why do astronauts in the space shuttle weigh less?

On average 8 bananas make up one pound. the price is four pounds for 5.00. you must buy 25 bananas.what is your cost?