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A steady-flow compressor is used to compress helium from 15 psia and 70oF at the inlet to 200 psia and 600oF at the outlet. The outlet area and velocity are 0.01 ft2 and 10 ft/s, respectively, and the inlet velocity is 50 f/s. Determine the inlet area and mass flow rate.
a piston-cylinder with a volume of 0.5 m3 holds 1 kg of nitrogen at a temperature of 261 k. heat transfer to the
air enters a cooling coil at the rate of 5000 cfm 2.4 m3s at 80 f 27 c db 68 f 20 c wb and sea-level pressure. the air
the train car has a mass of 10 mg and is traveling at 5 ms when it reaches a. if the rolling resistance is 1100 of the
finding the time interval for the motorcyclist to reach a given acceleration if the motorcyclist starts from rest
an airplane moves forward at a speed w1 971 kph. the frontal intake area of the jet engine is a1 0.8 m2 and the
an old-style wooden irrigation gate is opened by pulling on a steel cable that connects to the bottom of the gate. how
what is the cooling temperature range obtained by thermoelectric refrigeration?
refrigerant 134-a is contained in a 4 ft3 tank at 160 lpfin2. at the beginning the saturated vapour occupies a volume
Why does the definition of NPSH include the dynamic head of the fluid? Isn't cavitation based only on the difference between the static head and the local vapor pressure?
Determine the natural frequencies of the system. For the baseline system I get natural frequencies at the following engine speeds: 435, 2026, 2818, 5225, 7093, 10245, and 12153 rpm.
A 60 ohm, 40 ohm, and 20 ohm resistor are each connected in parallel across a 120VAC source. What is the total current.
homebuilding has undergone significant advances in the last 20 years due largely to replacement of hand tools hammers
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