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Determine the compressor work input requireed to compress steam isentropically from 100 kPa to 1 MPa, assuming that the steam exists as (a) saturated liquid and (b) saturated vapor at the inlet state. Solve using enthalpies instead of specific volumes and changes in pressures. Calculate the error incurred by using enthalpies instead of specific volumes for part (a) and explain what caused this error.
A paper clip is made of wire 0.7 mm in diameter. If the original material from which the wire is made is a rod 25 mm in diameter, calculate the longitudinal engineering strain and true strain that the wire has undergone during processing.
How much heat is required to raise the temperature of 10 pounds of water from 50 degrees fahrenheit to 70 degrees fahrenheit?
a 5.70kg block hangs from a spring with spring constant 1900nm . the block is pulled down 6.80 cm from the equilibrium
a spring loaded device imparts an initial vertical velocity of 50 ms to a 0.15 kg ball. the drag force on the ball is
preparing cad geometry for fea element selection meshing and mesh optimisation as well as model simplification. in the
two heavily insulated tanks are connected by a valve. tank a has a volume of 600l and contains water at 200kpa and
reflection-existing competenciespart-11. reflect on and self-assess your current achievements of engineers
determine the expressions for attractive and repulsive energies, EA and ER as a functions of r where r is in nm and E is in eV.
now consider the cooling process. it takes place in a heat exchanger hx. warm air. at 75 f is flows into one side of
the hot gas supply to a propulsion nozzle is at a pressure of 55kpa and temperature of 800k. the ambient pressure is
a driver of a car is repeatedy driving around a roundabout with a diameter of 100feet . the driver is traveling around
the end of a large tubular workpart is to be faced on a nc vertical boring mill. the part has an outside diameter 45.0
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