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A tank contains 0.9 m^3 of helium at 200 kPa and 20 C. Estimate the total mass of this gas in, kg,
a) on earth andb) on the moon. Also,c) how much heat transfer, in MJ, is required to expand this gas at constant temperature to a new volume of 1.5 m^3.
a roast is in an oven and weighs 2.25 kg. it is initially at 6 degrees celsius and needs to be heated to 80 degrees
air flows in a round pipe at a rate of 0.015 lbmsec. the air enters the pipe at a temperature 76.8 of and a pressure
a train made up of 3 cars of weight 60000 lb each connected by coupling springs of stiffness 15000 lbin. is released by
a 175lb man initially at rest at a on a floating platform starts walking to the right with a constant speed vo3 fts
Determine a symbolic expression for the total thermal resistance of wall, including inside and outside convection effects for prescribed conditions.
You are asked to measure the rate at which waste gases are being discharged from a stack. The gases entering contain 2.1 % carbon dioxide. Pure carbon dioxide is introduced into the bottom.
intake air to turbocharger for internal combustion engine is 100kpa at 300k. determine the turbocharger pressure ratio
a rigid well insulated container is outfitted with a moveable but frictionless partition that separates two sides but
the heat flux that is applied to the left face of a plane wall is q20 wm2. the wall is of thickness l10 mm and of
a particle is moving along a straight line with the acceleration a12t-3t12 fts2 where t is in seconds. determine the
consider a concentric circular-tube annulus with outer diameter 2.5cm and inner diameter 1.25cm in which air is flowing
why is it desirable and advisable for the jominy specimens to be held in the oven at the austenitic temperature for a
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