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An engine with an output of 247.0 W has an efficiency of 36.0 %. It works at 9.00 cycles/s. How much work is done in each cycle?
How much heat is rejected each cycle?
A ten pound car wheel has a moment of inertia of 0.38 kg m2. What is the wheel's rotational kinetic energy
A three-legged wooden bar stool made out of solid Douglas fir has legs that are 2.5cm in diameter.When a 65 man sits on the stool, by what percent does the length of the legs decrease
Two of the same capacitors C are wired in series. When they are connected to a +30V battery, How much energy each capacitor stores
What are the first, second, and third frequencies audible from a 20cm long organ pipe when (1) only one end is open and when (2) both ends are open. The speed of sound through the air inside the organ pipe is 343 m/s. (Hint: if a harmonic does not..
A series RCL circuit contains a 5.44-µF capacitor and a generator whose voltage is 11.6 V. Find the value of the inductance
Two metal spheres, each of mass 14 g and initially at rest, are dropped from a height of 6 m in an evacuated chamber. Find the difference in final speeds of the two spheres
question1a 27 kg chair initially at rest on a horizontal floor requires a 377 n horizontal force to set it in motion.
A heat engine has an efficiency of 61.5% and it exhausts 7500 J of waste heat into the environment. How much work is performed by the previous heat engine
A large steam pipe is covered with 1.3-cm-thick insulating material of thermal conductivity 0.25 J/(s m °C). How much energy is lost every second
A thick, vertical iron pipe has an inner diameter of 0.077 m. A thin aluminum (? = 23x10-6 (C°)-1) disk, What is the temperature of the aluminum disk when the disk falls into the pipe
question1visualize a crystal that exploits for binding coulomb attraction of the positive andnbspnegative ions of the
A hill that has a 15.8 % grade is one that rises 15.8 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal
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