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Question: A geothermal power plant uses geothermal water extracted at 160oC at a rate of 440 kg/s as the heat source and produces 22 MW of net power. IF enviroment temp if 25oC the actual rate of heat rejection from this power plant.
A block of ice with a mass of 3000kg is being pulled along a horizontal surface by a force F=300N at 30 degrees. Calculate the work done by this force in moving the ice 50.0m
The electric field just above the surface of the charged drum of a photocopying machine has a magnitude E of 2.3 105 N/C.The drum has a length of 40 cm and a diameter of 11 cm. What is the total charge on the drum?
A 75.0 kg stunt man jumps from a balcony and falls 22.5 m before colliding with a pile of mattresses. what is the average force exerted by the mattresses on the stuntman
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor and that its period is 16.1 s. The acceleration of gravity is 9.8 m/s2 .
Two identical conducting spheres are separated by a fixed center to center distance of 45 cm and have different charges, Find the inital charge on the spheres
Potassium is an essential element that normally comprises about 0.30% of a person's body mass. What's the potassium activity in a 69kg person
A fountain shoots a jet of water 10 m into the air. The fountainhas a round nozzle of diameter 1.84 cm at ground level, fed by a pump located 6 m belowground through a round pipe of diameter 5.19 cm.
Estimate the spacing between the two irrandiance maxima closest to the geometric of a plain wave illuminated straightedge if the source distance is 10.0 cm and the observation distance is 20.0 cm. Assume wavelength=632.8 nm.
Three deer, A, B, and C, are grazing in a field. Deer B is located 63.9 m from deer A at an angle of 51.4 ° north of west. What is the distance between deer A and C
A small mailbag is released from a helicopter that is descending steadily at 2.04 m/s. (a) After 4.00 s, what is the speed of the mailbag? (b) How far is it below the helicopter? (c) What are your answers to parts (a) and (b) if the helicopter is ..
A chartered airplane flies 100 km east, then 350 km northwest, and then 150 km at 30° west of south. Find the magnitude of the last leg of the journey
A 12.0 micro F capacitor is connected to a power supply that keeps a constant potential difference of 22.0V across the plates. By how much did the energy change during the insertion
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