(a) calculate the ratio of the maximum radial stresses at the edge and centre of a flat circular steel plate clamped at its periphery and subjected to a uniform pressure p. ν=0.29. (b) calculate the ratio of the maximum tangential stresses at the edge and centre.

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0

Wiy doeres rere okhn a pump whon working betwon the same pressure range?

Apure substance is a)-mixture of various chemical elements or compounds b)-substance that has a fixed chemical composition throughout c)-mixture that is homogeneous (such as air) d)-all the answers