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The coefficient of performance of a refrigerator is defined as the ratio of heat extracted from the refrigeration compartment to the work required to operate the refrigerator. A certain refrigerator has a coefficient of performance of 2 and requires 571 W of electrical power to operate its compressor. At what rate will this refrigerator deliver heat to the room in which it is operating when it is running?
For the third circuit, consisting of a single battery and two light bulbs in parallel, What is the current through each bulb
Find the escape velocity for a partical on a spherical planet of radius R and mass M. What is the numerical value for the Earth? the moon? the sun?
Clarify how Einstein's contribution to understanding the force between the earth and the moon differed from Newton's. Include a short statement of Einstein's explanation in the answer.
if the mass of the diver is 134kg and the board is 9m long, illustrate what is the torque due to gravity on the diving board with a pivot point at the fixed end of the board?
A particular string of length 3.2 m resonates in four loops at a frequency 360 Hz. What is the distance between two adjacent nodes? What is the frequency of the standing wave that will produce 5 loops?
Consider a uniform thin rod of length 2.00 m and mass 1.00 kg is lying on a smooth horizontal table. How far does the center of mass of the rod travel during the time it takes to make one complete revolution
Given an angular velocity of 100rev/min, a mass of 10 kg, with radius .75, how does one find the maximum force
A ball swings in a vertical circle at the end of a rope 1.40 m long. When the ball is 35.5° past the lowest point on its way up, Determine the magnitude of its radial acceleration
A solid disk with m=60.0kg and a diameter of 48.0cm is to be turned from rest through 12.0 revolutions in 6.00s. Calculate the torque required to accomplish this
A satellite has a mass of 5555 kg and is in a circular orbit 4.20 105 m above the surface of a planet. What would be the true weight of the satellite if it were at rest on the planet's surface
Consider the NaCl molecule, for which the moment of inertia is 1.30 x 10-45 kg·m2. what are the allowed Raman-scattered wavelengths
Coherent light that contains two wavelengths, 660 nm and 470 nm, passes by two narrow slits with a separation of 0.280 mm and an interference pattern is observed on a screen which is a distance 4.40 m from the slits.
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