Final temperature of air if expanded in polytropic process
Air is expanded in a polytropic process with n = 1.5 from 2 MPa and 300 degrees celcius to 80 kPa in a piston-cylinder device. Determine the final temperature of the air.
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Eight of these patients did lose weight but three patients had a weight increase.To test whether the diet is successful (i.e., post weight is lower than pre-weight) using post weight-pre-weight, state the appropriate null and alternative hypotheses
Nitrogen (N2) initially occupying 0.1 m3 at 6 bar, 2478C undergoes an internally reversible expansion during which pV 1.20 5 constant to a final state where the temperature is 378C.
Create a seven by seven matrix with random numbbers between 1 and 70. Outpput a vector of the difference between the average and the minimum element values in each row of the matrix.
What is the theoretical mechanical advantage obtained by the man who pulls on the return rope to roll the heavy barrel up the incline? (Use m* as the ratio of output force to input force.)
Eleven patients were weighed before and after a diet which was designed to help patients reduce weight. Eight of these patients did lose weight but three patients had a weight increase.
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A large chain retailer purchases a certain kind of electronic device from a manufacturer. The manufacturer indicates that the defective rate of the device is 3%.
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