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A heat pump extracts 7.0*10^6 J heat per hour from a well at 280K and delivers its output heat into a house at 320K. If the heat pump uses an ideal Carnot cycle in its operation, what minimum work must be supplied to the heat pump per hour? Please show all work, Thank you!
Some amusement park rides move you back and forth in the horizontal direction. Why is this motion so much more disturbing to your body than cruising at a high speed in a jet airplane.
A 50 kg child takes a ride on a roller coast . the coaster maintains a constant speed of15 m/s as it moves around a loop of radius 10m. what is the centrupetal acceleration of the child
In the x-y plane, a charge of -4.6uC is on the x-axis at the point (-30cm,0) and a second charge of +7.2uC, Calculate the magnitude and direction of the Electric Force Fe
Two parallel plates are charged to a voltage of 50V. If the separation between the plates is 0.05m, what is the electric field between them?
What is velocity of the boat relative to the shore
A baseball outfielder throws a 0.150 kg baseball at a speed of 35.0 m/s and an initial angle of 26.0°. Illustrate what is the kinetic energy of the baseball at the highest point of its trajectory?
Long, long ago, on a planet far, far away, a physics experiment was carried out. First, a 0.250- ball with zero net charge was dropped from rest at a height of 1.70. The ball landed 0.400 later. Next, the ball was given a net charge of 7.85 and dropp..
How much energy is stored in a 11.2mH inductor carrying a 1.45A current? Solve for mJ
A rectangular copper strip 1.5 cm wide, 0.1 cm thick carries a current of 5 A. A 1.2 T magnetic field is applied perpendicularly to the strip. Find the Hall voltage that should be produced
A transformer has 350 primary turns and 1290 secondary turns. The input voltage is 120?V and the output current is 15.5A . Assume100% efficiency, What is the output voltage
Two balls of the same mass are accelerated by different net forces such that one ball gains a velocity twice that of the other ball in the process. Is the work done by the net force acting on the faster moving ball twice that done on the slower mo..
One cubic meter (1.00 m3) of aluminum has a mass of 2.70 103 kg, and the same volume of iron has a mass of 7.86 103 kg. Find the radius of a solid aluminum sphere
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