3water within a piston–cylinder assembly, initially at 10 lbf/in.2 , 500°f, undergoes an internally reversible process to 80 lbf/in.2 , 800°f, during which the temperature varies linearly with specific entropy. for the water, determine the work and heat transfer, each in btu/lb. neglect kinetic and potential energy effects.
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Physics, 22.06.2019 10:00
Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n
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Physics, 22.06.2019 15:30
At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.
Answers: 1
Physics, 22.06.2019 20:30
You are doing a science experiment with a fahrenheit thermometer. your data must be in degrees celsius. if you measure a temperature of 125°f, what is this temperature in degrees celsius
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3water within a piston–cylinder assembly, initially at 10 lbf/in.2 , 500°f, undergoes an internally...
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