Determine the work required to freeze of ice
A Carnot refrigerator is used for making ice. Water freezing at 32 F is the cold reservoir. Heat is rejected to a river at 72 F. Determine the work required to freeze 2000 lbm of ice? (The latent heat of fusion of ice is 144 Btu/lbm.)
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In a random sample of 100 items, 17 are defective. If the Null hypothesis is that 22% of the items in the population are defective, what is the value of Zstat?
The two flows exchange energy as they flow alongside each other to the exit, where the air should be cooled to 350K.
Project K costs $70,000, its expected cash inflows are $16,000 per year for 8 years, and its WACC is 13%. What is the project's discounted payback? Round your answer to two decimal places.
The flywheel is a uniform solid cylinder with mass 1600 kg and radius 0.600 m. The bus body does work against air resistance and rolling resistance at the average rate of 18.0 hp as it travels with an average speed of 40.0 km/h. How far can the bu
In a gambling game, a woman rolls two fair dice. If she rolls a double 6, she will win $50. If she gets a double other then 6,6 she will win $5. She loses otherwise. How much should she play to win if the game is fair?
Each ball has cross-sectional area 4.00 cm^2 and is so shaped that it has a drag coefficient of 0.600. Calculate the power input required to spin the beater at 1000 rev/min (a) in air and (b) in water.
Find the range and the standard deviation (correct to two decimal places). 83, 96, 99, 99, 108
The acceleration of a package sliding at point A is . Assuming that the coefficient of kinetic friction is the same for each section, determine the acceleration of the package at point B. A is 30 degrees and B is 15 degrees .
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