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An ocean thermal-energy power plant takes in warm surface water at a temperature of 26oC and releases heat at 12oC to cooler water drawn from deeper in the ocean. What is the maximum possible efficiency of this power plant?
A ball is thrown horizontally from the top of a 60.0-m building and lands 100.0 m from the base of the building. Ignore air resistance. What must have been the initial horizontal component of the velocity
The potential energy U(r) between any two atoms, when given as a function of the distance between their centers, do the atoms behavemost like a simple harmonic oscillator
q1. the bottom of a box has a surface area of 2.50 m2. the mass of the box is 51.5 kg. acceleration because of gravity
Draw the displacement for the father and son.
If the string makes an angle of 29? with the vertical, find out the centripetal force experienced by the ball. The acceleration of gravity is 9.8 m/s2 .
An airplane has a mass of 3.0*10^6 kg and air flows past the lower surface of the wing at 96 m/s, how fast must the air flow over top of the wing
Consider a sample of diatomic ideal gas which is taken through the following cycle: A constant pressure process that doubles the volume of the gas, What is the efficiency of this cycle
A camera with a 70.0-mm lens can focus on objects located from 1.40 m to an infinite distance away by adjusting the distance between the lens and the film. how far does the lens move with respect to the film
0.0024 J of energy are stored in a parallel-plate capacitor whose plates each have area 0.30 m2 and are 1.5 mm apart. What is the electric field energy density between the plates
questionone of the methods used to train astronauts for the effects of zero gravity in space is to put them in a
A ball thrown horizontally at 28 m/s travels a horizontal distance of 55 m before hitting the ground. From what height was the ball thrown
A spring stretches by 0.0241 m when a 4.15-kg object is suspended from its end. How much mass should be attached to this spring so that its frequency of vibration is f = 4.44 Hz
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