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A 1982 U.S. Department of Energy article (FS#204) states that a leak of one drip of hot water per second can cost $1.00 per month. Making reasonable assumptions about the drop size and the unit cost of energy, determine if this claim is reasonable. Show calculations.
Air is expanded in a poly tropic process from a pressure and volume of 350 kPa and 0.03 m3 until its volume is increased by 6.667 times. The poly tropic process has an exponent n = 1.5
A carnot heat engine receives heat from a reservoir at 925oC at a rate of 730 kJ/min and rejects the waste heat to the ambient air at 24oC. The entire work output of the heat engine is used to drive a refrigerator that removes heat from the refrigera..
optimus prime is flying straight up at 67 ms when he accidentally drops his mega-ray blaster and it falls 76 m to the
an engine operates on an ideal cold air-standard otto cycle with a compression ratio of 8 r v1v2. heat transfer to the
During an experiment, an aerospace engineering student measures a wind tunnel's velocity N times. The student reports the following information, based on 90% confidence, about the finite data set: mean velocity=25 m/s, velocity standard deviation=1.5..
A 1.0 litre bottle of water weighs 9.79 N at sea level. If the bottle was taken to the top of Mt Everest (8848 m above sea level), how much would it weight there? Take g at sea level to be 9.81 m/s2 and the radius of the Earth to be 6371 km.
given the following data find the straight-line equation using the least square method.find the standard error.x 1 2 3
argon is compressed in a polytropic process with n 1.2 from 120 kpa and 30ordmc to 1200 kpa in a piston-cylinder
How can you tell what kind of primary atomic bonding is present by noting where the involved elements are located on the periodic table? Describe how the electron negativity difference between atoms affects the ionic/covalent character of a bond.
air at 80 degrees fahrenheit and 80 percent relative humidity is cooled to 51 degrees fahrenheit at a constant pressure
gasoline car enginea gasoline car engine has a compression ratio of 8. air enters the cylinders of the engines at 60of.
you have been asked to design an experiment to measure aerodynamic forces on a building using a 180 scale replica of
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