Maurice Tutor

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Teaching Since: May 2017
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 08 Jan 2018 My Price 5.00

undisturbed water

A boat is driven at constant velocity c (relative to the undisturbed water) by a jet-propulsion unit which takes in water at the bow and pumps it astern, beneath the water surface, at velocity u relative to the boat. Show that the efficiency of the propulsion, if friction and other losses are neglected, is 2c/(c + u).

Such a boat moves steadily up a wide river at 8 m ·s−1 (relative to the land). The river flows at 1.3 m ·s−1. The resistance to motion of the boat is 1500 N. If the velocity of the jet relative to the boat is 17.5 m ·s−1, and the overall efficiency of the pump is 65%, determine the total area of the outlet nozzles, and the engine power required.

Answers

Maurice Tutor
(5)
Status NEW Posted 08 Jan 2018 10:01 PM My Price 5.00

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