A patrol boat is powered by a water jet engine, which takes water in at the bow through a 1 ft diameter duct and pumps it out the stern through a 3 in. diameter exhaust jet. If the water is pumped at a rate of 5000 gpm, determine:
(a) The thrust rating of the engine
(b) The maximum speed of the boat, if the drag coefficient is 0.5 based on an underwater area of 600 ft2
(c) the horsepower required to operate the motor (neglecting friction in the motor, pump, and ducts)
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