A sprinkler with four identical arms is to be converted into a turbine to generate electric power by attaching a generator to its rotating head as show below. Water enters the sprinkler from the base along the axis of rotation at a rate of 20 L/s and leaves the nozzle in the tangential direction. The sprinkler rotates at a rate of 100 rpm in a horizontal plane. The diameter of each jet is 1 cm, and the normal distance between the axis of rotation and the center of each nozzle is 0.6 m. What is the torque associated with this rotation
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A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?
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It's time for santa to deliver his presents. assuming he delivers presents all over the world, he has to travel about 75,000,000 miles. if he travels east to west, he can use the time zones to make christmas day last 31 hours. what speed, in miles per hour, must santa fly to get all of his presents delivered?
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A sprinkler with four identical arms is to be converted into a turbine to generate electric power by...
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