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An ideal refrigerator utilizes a Carnot cycle operating between 0 degree C and 26 degree C.
A.) To turn 20kg of liquid water at 0 degree C into 20kg of ice at 0 degree C, how much heat is exhausted into the room. in Joules.
B.) How much energy must be supplied to the refrigerator? in Joules
A television set connected to a 120 outlet consumes 76 of power. -How much current flows through the television? -How long does it take for 10 million electrons to pass through the TV?
Illustrate what are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice.
If a ball has a net positive charge of 57 ?C, how many electrons must be added to make the ball neutral
what is the minimum diameter of the eyepiece required to collect all the light entering the objective from a distant point source located on the telescope axis
During a drive by golfer Tiger Woods, the angular velocity of his club is zero at the top of the backswing and the 1719 degree/second at the bottom of the downswing just before impact with the ball
Four linear polarizers are stacked so that each is at a 30 degree angle to the one before it, what is the intensity of the transmited light
The ball leaves his racket with a speed of 16.0 m/s at an angle 5.5 degrees above the horizontal. The horizontal distance to the net is 7.0 m and the net is 1.0 m high. Explain by how much did the ball clear the net?
In a proton accelerator, the energy of proton is 20MeV, the diameter of the beam is 2.0mm, Find the current density and the particle density in the beam
A system absorbs at a 45% efficiency in a location where average solar-energy hitting the solar pan- els is 210 W/m2. what volume of water can be heated in one hour
A 70kg man walks out on a 10kg beam that rests on, but is not attached to, two supports. When beam just starts to tip, what is the force exerted on the beam by the right support.
A single-turn circular loop of radius 8.00 cm is to produce a field at its center that will just cancel the earth's field of magnitude 0.7G directed at 70 below the horizontal north direction. Find out the current in the loop.
A certain ideal gas has a molar specific heat at constant volume CV = 7R/5. What is its molar specific heat at constant pressure
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