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A rigid tank with volume of 3 ft^3 is initially filled with refrigerant-12 at 120 psia and 140 F. The refrigerant is now cooled to 20 F. determine the mass of the refrigerant.
The Hubble Telescope orbits the earth in a near circular orbit of about 585 kilometer above the Earth's surface. Compute the magnitude of centripetal acceleration of satellite
In 1926 Babe Ruth hit a home run that was estimated to have landed 180m from home plate and to have reached a height of 21.3 m. What was the initial velocity of the ball
An astronaut on the moon applies a100N horizontal force to a 10kg mass at rest on a table. At what rate does the mass accelerate
In this problem you will consider the balance of thermalenergy radiated and absorbed by a person. Assume that the person is wearing only a skimpy bathing suit of negligible area. how much thermal power P does the human body radiate
A box of books weighing 260 N is shoved across the floor of an apartment by a force of 370 N exerted downward at an angle of 34.9° below the horizontal. How long does it take to move the box
A 70-kg diver steps off a 10-m tower and drops, from rest,straight down into the water. find the average resistive force exerted on him by the water
A 3.7-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,062oC is placed on top of a 2.5-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC. what is the final temperature of the iron block
A particle of mass 9.82 g and charge 67.7 μC moves during a uniform magnetic field, in a region where the free-fall acceleration is -9.8 m/s2 without falling. The velocity of the particle is a constant 18.3 km/s, which is perpendicular to the magnet..
0.60 kg of ice at -10oC is placed in 0.30 kg of water at50oC. How much liquid water is there when the system reaches thermal equilibrium?
The voltage across a coil whendi/dt= 20 mA/s andL= 8H is ?
as a 15000 kg jet plane lands on an aircraft carrier its tail hook snags a cable to slow it down. the cable is attached
An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is s = 1.8 x 10-7 C/m2, How fast is the electron moving just before it reaches the positive plate
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