A tank of oxygen (Table A.4) at 20C is to supply an astronaut through an umbilical tube

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A tank of oxygen (Table A.4) at 20°C is to supply an astronaut through an umbilical tube 12 m long and 1.5 cm in diameter. The exit pressure in the tube is 40 kPa. If the desired mass flow is 90 kg/h and f = 0.025, what should be the air pressure in the tank?
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Essential University Physics

ISBN: 978-0321976420

3rd Edition Volume 2

Authors: Richard Wolfsonby

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