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1. An ice cube at 0.0°C is gradually melting. What is the change in the ice cube’s entropy for each 1.00 g of ice that melts?
2. A reversible engine with an efficiency of 30.0% has TC= 310.0 K. (a) what is TH? (b) How much heat is exhausted for every0.100 kJ of work done?
3. A heat engine takes in 125 kJ of heat from a reservoir at815 K and exhausts 82 kJ to a reservoir at 293 K. (a) what is the efficiency of the engine? (b) What is the efficiency of an ideal engine operating among the same two reservoirs?
4. A monatomic perfect gas follows the cyclic process shown in the figure. The temperature of the point at the bottom left of the triangle is 470.0 K. (a) How much net work does this engine do per cycle? (b) What is the maximum temperature of this engine? (c) How many moles of gas are utilized in this engine?
What voltage must be applied to the 5.00 µF capacitor of a heart defibrillator to store 600 J in it, Find the amount of stored charge
A ball player hits a home run, and the baseball just clears a wall 20.6 m high located 121.0 m from home plate. How much time does it take for the ball to reach the wall
An infinitely long uniformly charged cylinder of radius R is shown. (a) Using symmetry arguments, sketch the shape of the electric field of the cylinder. (h) Use Gauss's Law to show that the electric field magnitude within the cylinder is
An green hoop with mass mh = 2.7 kg and radius Rh = 0.17 m hangs from a string that goes over a blue solid disk pulley with mass md = 2.3 kg and radius Rd = 0.09 m. What is magnitude of the linear acceleration of the hoop
On a frozen pond, a 11.6 kg sled is given a kick that impartsto it an initial speed of vo = 2.15 m/s. find the distance the sled moves before coming to rest
Starting from rest, a basketball rolls from the top of a hillto the bottom, reacing a translational speed of 3.54 m/s. Released from the rest at the same height, a can of frozenjuice rolls to the bottom of the same hill. What is the translational sp..
A 16.0 kg wheel, essentially a thin hoop with radius 1.70 m, is rotating at 426 rev/min. It must be brought to a stop in 11.0 s. How much work must be done to stop it
a fighter plan flying at 378 ms at an altitude of 160 m during a training mission releases a projectile when he starts
A certain star is 14 million light years from Earth. The intensity of light that reaches earth from the star is 4X 10^ -21 w/m^2
A bat crashes into the vertical front of an accelerating subway train. what is the minimum acceleration of the train
What is the magnitude of the net force on the student. A student who weighs 470N is wearing a backpack that weighs 84N. The student is standing still on level ground.
a 1.0cm -tall candle flame is 2.0m from a wall. you happen to have a lens with a focal length of 42cm . a how many
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