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You are standing on a sheet of ice that covers the football stadium parking lot in Buffalo; there is negligible friction between your feet and the ice. A friend throws you a 0.375 kg ball that is traveling horizontally at 9.50 m/s . Your mass is 65.0 kg. A. If you catch the ball, with what speed do you and the ball move afterwards? B. If the ball hits you and bounces off your chest, so that afterwards it is moving horizontally at 8.30 m/s in the opposite direction, what is your speed after the collision?
If there had been no explosion, the shell would have landed a distance from the mortar. Suppose that air resistance and the mass of the shell's explosive charge are negligible. Determine the distance from the mortar at which the larger piece of th..
a worker exposure to noise in a given plant is measured as follows during various time periods in an 8-hour shifta.
Two trains are traveling toward each other in still air at 27.6 m/s relative to the ground. One train is blowing a whistle at 330 Hz. The speed of sound is 343 m/s.
Halfway through the process, the man and the daughter are each traveling with speeds of 1.10 m/s, with the man's velocity directed toward one end of the canoe and the daughter's velocity directed toward the other end of the canoe. what is the spee..
The Burj Khalifa in Dubai is the world\'s tallest building. The structure is 828 m (2,716.5 feet) and has more than 160 stories. how high is the hotel room from the ground
Calculate the net work done by the force of friction. A 1.50 m-long, 530 g rope pulls a 7.00 kg block of ice across a horizontal, frictionless surface. The block accelerates at 1.90 {rm m}/{rm s}^{2}. How much force pulls forward on (a) ice (b) rop..
Scientists have recently shown that a sample of cocaine can be traced to its country of origin by measuring the ration of carbon-13 to nitrogen-15 (both naturally occuring, stable nuclides) in the cocaine sample.
The proper length of one spaceship is 2.8 times that of another. The two spaceships are travelling in the same direction and, while both are passing overhead, an Earth observer measures the two spaceships to be the same length.
If the car is now at rest and the pendulum undergoes S.H.M. would its time be shorter of longer than that calculated in (b) explain your answer.
A jogger runs 100m due east, then changes direction for the second leg of the run. At the end of the run, she is 350m away from the starting point at an angle of 25.0° north of east. What were the direction and length of her second displacement? Util..
A hunter aims directly at a target (on the same level) 150 m away. If the bullet leaves the gun at a speed of 220 m/s, by how much will it miss the target
It is fairly easy to strip the two electrons off a helium atom, leaving a bare nucleus of two neutrons and two protons. What is the necessary voltage difference
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