The minimum power needed to drive an insulated air compressor that increases the pressure from 120 kPa to 600 kPa if T1 = 20°C and m???? = 2 kg/s is nearest:
A) 190 kW
B) 245 kW
C) 307 kW
D) 342 kW
D) 342 kW
Assume an isentropic process to find T2 and then find the work rate:
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A. Insulation B. Rebar C. Tyvek D. Padding
2,4-D is used to control:
A) annual grasses B) perennial grasses C) ?sedges D) broadleaf weeds
Population distribution after World War II followed a pattern of
A. movement into the Northeast and out of the South. B. mass migration of blacks from the West to the Midwest. C. movement from the Southwest to Appalachia. D. movement out of the cities and into small towns. E. an urban-suburban segregation of blacks and whites in major metropolitan areas.
Photoelectric sensors have five components that include a light source, light detector, logic circuit, lens, and output switching device
Indicate whether the statement is true or false