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An engine removes 200J from a hot reservoir at 373K, does 48J of work, and exhaust 152J to a cold reservoir at 273K.
(A) what is the engine efficiency?
(B) what is the maximum amount of work that could be done.
(C) how much work is lost per cycle due to the irreversibility processes of this engine?
Determine the mutual inductance per unit length between two long solenoids, one inside the other, whose radii are r1 and r2 (r2
In the laboratory frame, two observers A and B are moving along the sides of an equilateral triangle with equal speeds c/2, as shown in the figure. Find the speed of B as seen by A.
A 6000kg truck stands on the deck of an 80000kf ferryboat. Initially the ferry is at rest and the truck is located at its front end. how far will the ferry move forward relative to the water
The motion of a particle is given by x= Asin^3(wt). What is the expression for the particle's velocity
an electron is released from rest at the negative plate of a parallel plate capacitor and accelerates to the positive
You have a wire with a current that points upwards. If you put a compass east of that wire, how would the magnitude and direction of the total magnetic field change
A motorist drives along a straight road at a constant speed of 20.5 m/s. Find the speed of the officer as he overtakes the motorist
After going through a bad break-up with your significant other you end up drinking half a case of beer. The next day you decide the cloud of despair must be fought with exercise. How much longer will it take you to burn off the calories of the bee..
Write an equation for the magnetic flux through a coil as afunction of the strength of the magnetic field and the angle between the area vector and the magnetic field direction? For what angle is this expression a max? Min? Zero?
a carnot cycle operates between source and sink temperatures of 250c and -15c. if the system receives 90 kj from the
A student hits the cork sharply with her fist and the bottom of the bottle breaks. The student's fist has a mass of m = 0.480kg and moves downward at a speed of vi = 5.00m/s. What is the force that the fist exerts on the top of the bottle
A steel tube has a length of 8.220 centimeter, an inside diameter of 2.540 centimeter and an outside diameter of 2.650 centimeter at -125 °C. Find the new values of these parameters at 125 °C
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