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A truck travels 60 mph on a smooth hosizontal road. The frontal area of the truck is 100 square feet. The air temperature is 60 degrees F and standard atmospheric conditions exist. The drag coefficient is 0.62. A.) Determine the power output required to maintain constant speed with no wind. B.) Assume constant power, determine the velocity of the trick if traveling against a 30 mph wind, C.) traveling with a 30 mph wind.
A Brayton gas turbine cycle has two stages of compression and two stages of expansion. The pressure ratio across each stage of the compressor and turbine is 3. The air enters each stage of the compressor at 300K and each stage of the turbine at 1..
a rigid tank contains 7.5 kg of saturated water mixture at 400 kpa. a valve at the bottom of the tank is now opened and
two tissues a and b are placed in a gas chamber and equilibrated with carbon monoxide gas at various partial pressures
five kilograms of water vapor initially at 160 c and 3 bar are cooled at constant pressure until the quality is 0.4.a
air conditioning1- cooling and heating load estimate using camel program library and the data from da-9 perform a
What is the work you get out of each kJ of heat extracted from the basin? Repeat for the case that the water is at 100C. Comment on why efficient car engines run so hot.
a tank contains helium at 103degrees celcius and 10.9kpa gauge . the helium is heated in a process by heat transfer
a a refrigeration system has a coeiumlnotfnofcient of performance of 5. the heat rejection is an isothermal process at
based on observations the speed of a jogger can be approximated problems 617 by the relation v 5 7.51 2 0.04x0.3 where
a jeep tows a 400kg block uip a 45deg incline. the coefficients of friction between the block and the ground are us0.6
question 1the naca 4412 airfoil has a mean camber line given byby using thin airfoil theory calculatea. its zero-lift
for the process where q 62.5 kjkg and wkcs 60 kjkg determine the energy change if the system mass is 2 kg 2. into a
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