A12-ft tall concrete wall with a vertical back is to be backfilled with a clayey sand that has a unit weight of 126 pcf, an effective cohesion of 500 psf, and an effective angle of 30 degrees. the ground behind the wall will be inclined at a slope of 2 horizontal to 1 vertical. compute the normal (e. g., horizontal) and shear (e. g., vertical) forces acting on the back of the wall. assume the wall moves sufficiently to develop the active conditions in the soil.

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k

Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options

What is the main objective of using reheat rankine cycle?