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A Carnot engine is operated between a hot and a cold reservoir. The temperature dissimilarity between the two reservoirs is 284°C. If the efficiency of this ideal engine is 24.0%, discover the temperature of the cold reservoir in °C.
Two waves are traveling in the same direction along astretched string. Each has an amplitude of 4.0cm, assume the wavesare 45o out of phase. What is the amplitude of the resultant wave
In a carnival they often have a large r = 16 m, cylinder which people stand against the outer wall while it rotates with some velocity, What is the minimum velocity of the cylinder to make someone "stick" to the wall in m/s
If the length of the beam is 4 meter and its cross-sectional area is 7.5 x 10-3 m2, evaluate the distance the beam is compressed along its length
A container holds 0.90 g of oxygen at a pressure of 7.7 atm. a)How much heat is required to increase the temperature by 113 C at constant pressure? b) How much will the temperature increase if this amount of heat energy is transferred to the gas at c..
A speeder passes a parked police car at 30 m/s. At that instant, the police car starts from rest with a uniform acceleration of 2.44 m/s2.
Two disks are rotating about the same axis. Disk A has a moment of inertia of 9.10 kg·m2 and an angular velocity of +8.10 rad/s. What is the moment of inertia of disk B
An astronaut stands by the rim of a crater on the moon, where the acceleration of gravity is 1.62 m/s2. what is the depth of the crater
a converging lens has a focal length of f 26 cm. an object is placed 37 cm from the lens. find the size of the image
charge of -2.95 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass, which has a radius of 0.097 m. The charges on the circle are -3.85 µC at the position due north and +5.20 µC at the position due ea..
A copper beaker of mass 0.20 kg contains 0.10 kg of water at 20.0 C. A block of silver of mass 100 g at 90.0 C is added to the beaker of water. What is the heat lost by the silver
a 48 kg skier skis directly down a frictionless slope angled at 13deg to the horizontal. assume the skier moves in the
A uniform chain with a mass of 1.38 kg per meter of length is coiled on a table. One end is pulled upward at a constant rate of 0.54 m/s. how much force must be applied to the end being raised
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