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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?
An object with a charge of -2.6?C and a mass of 1.2×10?2kg experiences an upward electric force, Find the magnitude of the electric field
Write an equation for a wave with a frequency of 2Hz, a wavelength of 30 m, and an amplitude of 75 cm
If 114 g of calcium chloride is formed when 43.4 g of calcium is reacted with chlorine. How much chlorine combined with the calcium
The cockroach finds a bread crumb on the rim and, of course, stops. Illustrate what is the angular speed of the lazy Susan after the cockroach stops?
Consider a chain with length 0.9 m and mass per unit length 0.6 kg/m. Suppose it is initially suspended above a table so that the lower, What is the force when one-half of the chain lies on the table
A Carnot cycle takes 92 cycles to lift a 10 kg mass a height of 13m. What is the temperature of the hot reservoir
Suppose 2.5 cubic meter of oil is spilled into the ocean. Find the area of the resulting slick, assuming that it is one molecule thick
Illustrate what is the minimum coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road?
The top of the hill is horizontal and 70 m higher than its base. What minimum speed must the block have at the base of the hill in order for it to pass over the pit at the far side of the hill
An air filled parallel plate capacitor has plates of area 5.0cm^2 each, separated by 0.30 mm with a dielectric of constant 3.4. The capacitor is connected to a 3.0V battery. Find the value of its capacitance
A steel wire of length L with a cross-sectionaldiameter d is wrappedover a light frictionless pulley, How much will the wire stretch while the massesare moving
A parachutist relies on air resistance (mainly on her parachute) to decrease her downward velocity. She and her parachute have a mass of 52.5 kg and air resistance exerts a total upward force of 610 N on her and her parachute.
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