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Laboratory measurements on an absorption refrigeration system produced the following results: the evaporator absorbs 15.0 × 103 Btu/h while 14.0 × 103 Btu/h of heat is added to the generator.
The carrier liquid pump requires 0.500 hp to operate during the test. Determine the coefficient of performance of the unit.
The coils of a motor's rotor have resistance of 2.0 Ω. When the motor runs at full speed, powered by 115V linevoltage it draws a current of 9A. What is the back electromagnetic field (emf) in this motor under those conditions? If the motor is preve..
Discuss the humidity in an air conditioned room and in a heated room in the winter. Why must we use a dehumidifier and humidifier? If the outside temperature is 41o F and room temperature is 68o F should we utilize dehumidifier why or why not
In the figure, these three resistors are connected to a voltage source so that R2 = 4.25Ω and R3 = 11Ω are in parallel with one another and that combination is in series with R1 = 2Ω. Calculate the power being dissipated by the third resistor P3, i..
If the concentration of carbon dioside in the atmosphere was rising due to increased buring (or decay) of plants around the world, what changes would we see in isotopic composition of atmospherc carbon dioxide?
A body is suspended vertically from an ideal spring of spring constant 3.4 N/m. The spring is initially in its relaxed position. The body is then released and oscillates about its equilibrium position. The motion is described by the following equa..
Sound propagating through air at 30oC passesthrough a vertical cold front into air that is 4.0oC. by what percentage does its wavelength change in crossing the boundary
A 1100 kg block of granite is pulled up an incline with L = 40.0 m at a constant speed of 1.06 m/s by a steam winch. What is the power of the winch
a a physicist on a planet orbiting the star zog measures the intensity of the radiation reaching her to be 1370 wm2. if
The driver of a car slams on the brakes when he sees a tree blocking the road. With what speed does the car then strike
What is the range of frequency of the light emitted by the hydrogen atom
Unpolarized light with intensity 370 W/ m^2 passes first through a polarizing filter with its axis vertical, What light intensity emerges from the second filter
Find how much time will it take for the truck to get from your position to the fire 5.5 kilometer away, assuming it maintains a constant speed
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