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A basketball player makes a jump shot. The 0.650-kg ball is released at a height of 1.90 m above the floor with a speed of 7.17 m/s. The ball goes through the net 3.05 mabove the floor at a speed of 4.21 m/s. What is the work done on the ball by air resistance, a nonconservative force?
Calculate each of the following if the electrons exit the field with a speed of 4.45x10^6 m/s and distance between the plates is 2.07 cm.
At what temperature would the rms speeds be equal to the escape speed from planet earth.
What is the value of g at the location of this satellite. Discover the altitude of the satellite in meters.
A 100-W lightbulb has a resistance of about 12 ? when cold (20 ?C) and 140? when on (hot). Estimate the temperature of the filament
Considering the equation for heat transfer through a wall, describe two simple ways to modify ahome to decrease the rate at which heat is lost through the walls.
Two metal spheres, each of mass 14 g and initially at rest, are dropped from a height of 6 m in an evacuated chamber. One sphere has a charge of +50 ?C, and the other has a charge -50 C.
A state highway patrol car radar unit uses a frequency of 9 x 10^9. what frequency difference will the unit detect from a car receding at a speed of 46.5 m/s from stationary patrol car.
Assume that, as lying on a beach near the equator watching the Sun set over a calm ocean, you start a stopwatch just as the top of the Sun disappears. You after that stand, elevating your eyes by a height H = 1.90 m.
Two circuits contain an emf produced by a moving metal rod, like that shown. The speed of the rod is the same in each circuit, other than the bulb in circuit 1 has one-half the resistance of the bulb in circuit 2.
As you think about it, you're not sure he threw the ball exactly horizontally, What is the range of speeds with which the ball might have left his hand, Enter the minimum and the maximum speed of the ball
A small sphere of mass m = 6.10 g and charge q1 = 29.2 nC is attached to the end of a string and hangs vertically. A second charge of equal mass and charge q2 = 58.0 nC is located below the first charge a distance d = 2.00 cm below the first charg..
A hawk is flying horizontally at 17.0m/s in a straight line, 160 m above the ground. A mouse it has been carrying struggles free from its grasp. The hawk continues on its path at the same speed for 2.00s before attempting to retrieve its prey.
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