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A Carnot refrigerator is operated between two heat reservoirs at temperatures of 320 K and 265 K.
If in each cycle the refrigerator receives 415 J of heat energy from the reservoir at 265 K, how many joules of heat energy does it deliver to the reservoir at 320 K?
Two waves of the same frequency have amplitudes 1.31 and 2.94. What is the resultant amplitude
A load of 52.5 N attached to a spring hanging vertically stretches the spring 5.29 cm. What force is required to stretch the spring by this amount
An electron in a hydrogen atom makes a transition from the n = 5 energy stage to the ground state (n=1). What is the frequency of the emitted photon
if you have a 20 by 20 square opening and you need an equalaterial triangle to span the opening what are the smallest
What is the new momentum of the puck. What is the length of pipe.
The hydraulic turbines in a water-power plant rotate at 60rpm and are rated at 20, 000 hp. The 30 in-diameter shaft between the turbine and the generator is made of steel (G = 12, 000 ksi) and is 20 ft long. Determine (a) The maximum shearing stress ..
A parallel-plate capacitor has circular plates of 6.80 cm radius and 1.40 mm separation. Calculate the capacitance. What charge will appear on the plates if a potential differenceof 108 V is applied?
Let the masses of blocks A and B be 4.0 kg and 2.0 kg, in that order, the moment of inertia of the wheel about its axis be 0.400 kg*m^2, and the radius of the wheel be 0.140 m. Find the linear accelerations of block A if there is no slipping between ..
A narrow beam of light is incident normally on one face of equiangular glass prism of RI 1.45. Find the refractive index of this liquid and draw a diagram showing the path of rays
Four identical metallic objects carry the following charges: +6.2 µC, +8.6 µC, -1.0 µC, and -2.0 µC. What is the final charge on each object
A bottle containing 3.4 kg (mass) of water at a temperature of 23.4 oC is placed in a refrigerator where the temperature is kept at 3.2 oC
A 1.1 kg hollow ball with a radius of0.12 m, filled with air, is releasedfrom rest at the bottom of a 1.9 mdeep pool of water. How high above the water does the ball shoot upward
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