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In a hydroelectric dam, water falls 32.0 m and then spins a turbine to generate electricity.
Suppose the dam is 80% efficient at converting the water's potential energy to electrical energy. How many kilograms of water must pass through the turbines each second to generate 45.0 MW of electricity? This is a typical value for a small hydroelectric dam.
a solid uniform spherical marble with mass 1kg and r .02m rolls down a hill starting from rest. the hill is 1m high and
In order better to map the surface features of the Moon, Calculate the satellite's kinetic energy, gravitational potential energy, and total orbital energy
A radar station locates a sinking ship at range 17.5 km and bearing 136° clockwise from north. How far apart are the plane and ship
The blood speed in a normal segment of a horizontal artery is 0.124 m/s. An abnormal segment of the artery is narrowed down by an arteriosclerotic plaque to 1/3 of its normal cross-sectional area. What is the difference in blood pressure between the ..
The coefficient of linear expansion of aluminum is 24.0 x 10-6 K-1 and the density of aluminum at 0°C is 2.70 x 103 kg/m3. What is the density of aluminum at 300°C
A particular fish tank filled with fresh water (n = 1.33) has a coral reef sticker stuck to an exterior wall, What is the index of refraction of the tank's walls
A crate of mass 10.2 kg is pulled up a rough incline with an initial speed of 1.60 m/s. What is the change in kinetic energy of the crate
What is the horizontal component of superhero's displacement.
The focal length of the eyepiece of a certain microscope is16.0 mm. The focal length of the objective is 7.00 mm. The distance among the objective and eyepiece is 19.7 cm. The final image formed with the eyepiece is at infinity. Treat all lenses as t..
When a patient is being fitted with contact lenses, the curvature of the patient's cornea is measured with an instrument known as a keratometer. what is the radius of curvature of the patient's cornea
A 20 g bullet traveling at 159 m/s is fired into a 0.413 kilogram wooden block anchored to a 99 N/m spring. determine what is the angular frequency
q. a cardinal richmondena cardinalis of mass 3.90times10-2 and a baseball of mass 0.144 have the same kinetic energy.
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