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A closed tank, V = 0.35 ft3, containing 10 lbm of water initially at 77F is heated to 350F by a heat pump that is receiving heat from the surroundings at 77F. Assume that this process is reversible. (a) Draw a schematic to illustrate the device (b) Find the heat transfer to the water and the work input to the heat pump.
a 1 hp electric motor drives a water pump. the pump volumetric flow rate is 2103 m3s at 300 k.a determine the head loss
However, even when the cylinder is pressurized, the torque T is still sufficient to keep the seam closed so that no water leaks out. Determine the angle theta degrees that requires the minimum torque T to keep the seam closed. (Hint: use Mohr's ci..
define mach number and determine the type of speed an aircraft is flying if the aircraft speed is 880 mph at an
If the beam has square cross section of 9 in., on each side, determine the absolute maximum bending stress in the beam.
steam enters a heat exchanger operating at steady state at 250 kpa and a quality of 90 and exits as saturated liquid at
a cylindrical drill with radius r1 is used to bore vertically a hole through the centre of a sphere of radius r2.a find
a cylinder with a moveable piston holds .20 lb of hydrogen initially in a volume of 1 cu ft at a tem-perature of 1300
determine the maximum power that can be transmitted thru a stepped shaft rotating at 60 hz. knowing the radius of the
In a refrigerator 1 kW is removed from the -10 degree C cold space and 1.3 kW is moved into the 30 degree C warm space. Find the exergy fluxes including direction associated with the two heat transfers.
a curved nozzle assembly that discharges to the atmosphere is shown. The nozzle mass is 4.5 kg and its internal volume is 0.002 m^3. The fluid is water. determine the reaction force exerted by the nozzle on the coupling to the inlet pipe.
the rods ab and cd each have a 30-mm diameter and are 1m long. the modulus of the rods is 28 gpa. the rods are
write a matlab program that determines the probability of 4 of a kind in a 5-poker draw. dont use formula. create a
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