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A heat pump has a coefficient of performance of 3.85 and operates with a power consumption of 6.91 103 W.
(a) How much energy does it deliver into a home during 2 h of continuous operation?(b) How much energy does it extract from the outside air?
A group of explorers in Antarctica can obtain water only by melting ice. They wish to make 4 cups of coffee, determine the amount of heat required and the amount of power required
A block of mass m = 353 g is dragged with a string across a rough horizontal table. What is the power supplied by the force of friction
A child applies a torque of 1200 N*M to a merry go round. The rotational interia of the merry go round is 900 kg*m 2. What is the net torque acting on the merry go round
The pressure-volume graph shows an engine cycle where the working substance is an ideal monatomic gas (? = 5/3). The process A-B is adiabatic. calculate the heat removed from the gas
An atom in a solid vibrates at 13 THz with amplitude 13 pm. Find the atom's maximum acceleration
An entertainer, when performing a bubble trick, forms one bubble inside another. What is the gauge pressure in the inner bubble
A tennis ball is thrown straight up with an initial speed of 20 m/s, What is the ball's acceleration at its maximum height
A 116 g Frisbee is 28 cm in diameter and has about half its mass spread uniformly in a disk, and the other half concentrated in the rim. What is the magnitude of the torque, assumed constant, that the student applies
At a total loss how to figure out this answer - If you are flying an aircraft at 250 KTAS (422.5 fps) at 15,000 ft stable flight and you wanted to perform a climb (Nose attitude greater than 60 deg) to zero airspeed, assuming constant drag, thrust an..
An electron moves at a speed of 15000 m/s in a circular path of radius 2.2 cm. Find the strength of the magnetic field inside the solieod
Vector A added to Vector B is equal to the magnitude of A added to the magnitude B, the vectors must be:
Explain how to determine the total resistance of a parallel and a series circuit. How does total resistance affect the current in each type of circuit
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