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A Carnot engine does work of 150 J per cycle. The engine operates between two reservoirs at 20 degree C and 500 degree C.
a) How much energy does it take per cycle?
b) How much energy is lost per cycle in its exhaust?
A 2 ?C negative charge is attracted to a large, well-anchored, positive charge. How much kinetic energy does the negatively charged object gain
15.0 meters from a sound source that radiates freely in all directions, the intensity is 0.00105 W/m2. What is the rate at which the source is emitting sound energy
Coherent light with wavelength 599 passes through two very narrow slits, and the interference pattern is observed on the screen a distance of 3.00 from the slits. The first-order bright fringe is a distance of 4.84 from the center of the central b..
A capacitor has a very large capacitance of 10 F. The capacitor is charged by placing a potential difference of 2V between its plates. How much energy is stored in the capacitor
There is a tree in the middle of your front yard and you take pictures of a squirrell as it runs around the tree. What is the displacement of the squirrell between the rst and second pictures
A geiger-muller tube is a type of gas-filled radiation detector. It can detect particles like X-rays, alpha particles and beta rays (electrons). what is the density of the gas in this geiger tube
1.you are holding a 6-kg dumbbell straight out at arms length. assuming your arm is 0.70 m long what torque is the
A 75 kg bobsled is pushed along a horizontal surface by two athletes. After 4.5 m from rest, the bobsled has a speed of 6.0 m/s. How much force did the two athletes push with
Friction and air resistance are negligible. Illustrate what speed does the ball have when the cable makes an angle of 30 degrees with respect to the vertical?
q1. from t 0 to t 5.00 min a man stands still and from t 5.00 min to t 10.0 min he walks briskly in a straight line
Two capacitors, C1 = 28.0 µF and C2 = 34.0 µF, are connected in series, and a 24.0-V battery is connected across them. (a) Find the equivalent capacitance, and the energy contained in this equivalent capacitor.
A projectile is fired from the edge of a 10m high cliff at 10m/s and an angle of 30 degrees from the horizontal. what is the magnitude of the final velocity
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