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Two soccer players kick a soccer ball back and forth along a straight line. The first player kicks the ball 16 m to the right to the second player. The second player kicks the ball to the left weakly; it only moves 1.7 m before stopping. (Consider the right to be the positive direction. Where applicable, indicate the direction with the sign of your answer.)
(a) What is the total distance that the ball moved?
(b) At the end, what is the displacement of the ball (from the first player)?
A rectangular sample of a metal is 3.6 centimeter wide and 500 µm thick. Calculate the drift speed of the conduction electrons
Find the rms speed of the molecules of a sample of N2 (diatomic nitrogen) gas at a temperature of 38.9°C
Determine the moment of inertia of a cylinder of radius 0.63 m, height 0.72 m and density (1.91 - 0.955r + 0.286r2) kg/m3 about the center
A train moving at 28.5 m/s passes a platform, sounding a horn with a frequency of 1250 Hertz. Obtain the frequency heard by an observer
Two slits are separated by 0.270 millimeter. A beam of 570 nm light strikes the slits, producing an interference pattern. Find the number of maxima observed in the angular range
A bolt gun includes a spring of spring constant k = 19 N/m which is used to shoot a bolt of mass m. The bolt leaves the gun at a speed of v = 4.3 m/s after the spring is compressed 1 cm. What is the weight, Fg in Newtons, of the bolt?
At the start of a trip, a driver adjusts the absolute pressurein her tires to be 2.83 x 105 Pa when the outdoor temperature is284 K. find the air temperature inside the tires at the end of the trip
A sphere of mass 46 kg is attached to one end of a rope, Find the work done by the force of gravity on the sphere
consider a hot-air balloon. the deflated balloon gondola and 2 passengers have a combined mass of 315 kg. when inflated
The sound level measured in the room by a person watching a movie in a home theatre system varies from 63 dB throughout a quiet part to 92 dB throughout a loud part. In the order of how many times louder is the latter sound.
A crate whose mass is 360kg rests on the bed of a truck that is moving at a speed of v0 of 105 km/h. The driver applies the brakes and slows down to a speed v of 62 km/h in 17 s. What force (assumed constant) acts on the crate during this time?
Two trains, each having a speed of 22 km/h, are headed at each other on the same straight track. What is the total distance the bird travels
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