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Refrigerant-134a at 140 kPa and 10°C is compressed by an adiabatic 0.7-kW compressor to an exit state of 700 kPa and 50°C. Neglecting the changes in kinetic and potential energies, determine
(a) the isentropic efficiency of the compressor,
(b) the volume flow rate of the refrigerant at the compressor inlet, in L/min, and
(c) the maximum volume flow rate at the inlet conditions that this adiabatic 0.7-kW compressor can handle without violating the second law.
A potential difference of 5.60 V will be applied to a 33.00 m length of 18-gauge tungsten wire (diameter = 0.0400inches). Calculate the current and Calculate the current density
Consider the system of ethanol (1)-benzene (2) at 25°C. This mixture exhibits an azeotrope at a mole fraction of x1 5 0.28 and a pressure of 122.3 torr. Determine values for the parameters in the van Laar equation. Estimate the liquid composition..
Two loudspeakers are placed on a stage 5.4 m apart and are radiating the same frequency, in phase. Calculate the frequency of the sound
Sound is detected when a sound wave causes the eardrum to vibrate. Typically, the diameter of the eardrum is about 8.4 mm in humans, What is the power delivered to your eardrum
Two charges are placed on the x axis. One charge (q1 = +8.97mC (microC)) is at x1 = +3.40cm, Calculate the net electric field at x = 0cm
A boy whirls a stone in a horizontal circle 1.6 m above theground, by means of a string 1.4 m long. The angle between thestring and horizontal plane is 10o. The string breaks, the stoneflies of horizontally, and strikes the ground 6 m away. What was ..
An airplane flying at a distance of 8.6 km from a radio transmitterreceives a signal of intensity 12 μW/m2. What isthe amplitude of the (a) electricand (b)magnetic component of the signal atthe airplane? (c) If the transmitterradiates uniformly over ..
A toy car runs off the edge of a table that is 1.225 meter high. If the car lands 0.400 meter from the base of the table, Determine how fast was the car going on the table
A wrecking ball is hanging at rest from a crane when suddenly the cable breaks. Find the time it takes for the ball to fall from rest all the way to the ground
When rolling a ball down an inclined plane, the ball rolls 1 cubit in ten seconds. How far will the ball have rolled from its starting point after 20 seconds
if cin cb 1 - e-0.12t calculate the outflow concentration of a conservative substance no reaction for a single
A diffraction pattern forms when light passes during a single slit. The wavelength of the light is 686 nm. Decide the angle that locates the first dark fringe when the width of the slit is (a) 1.7 x 10-4 m and (b) 1.7 x 10-6 m.
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