A"scale" is constructed with a 4--long cord and the20 block d. the cord is fixed to apin at
a and passes over two small pulleys at band
c.
determine the weight of the suspended blockat
b if the system is in equilibrium.
express your answer with
theappropriate units.
shouldn't tbc be equal to wd because they are on the
samepulley?

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

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?