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Two cannons, aimed at each other, stand on roofs of two identical (meaning same height) very tall buildings, 100 meters apart. Both cannons are fired at the same time. However, one cannonball is bigger and so it is fired at 20 m/s, while the other cannonball is smaller and so it is fired at 30 m/s. a) Will the cannonballs hit each other?
A woman walks 290 m in the direction 37° east of north, then 177 m directly east. Find (a) the magnitude and (b) the angle (from due east) of her final displacement from the starting point. (c) Find the distance she walks.
A golf ball of mass 0.050 Kg is hit off the tee at a speed of 35 m/s. The golf club was in contact with the ball for. Find the average force exerted on the ball by the golf club
In a popular amusement park ride, a rotating cylinder of radius 4.00 m is set in rotation at an angular velocity of 6.00 rad/s. The floor then drops away, leaving the riders suspended against the wall in a vertical position.
Two light bulbs use 30 W and 60 W, respectively, when connected in parallel to a 120-V source. How much power does each bulb use when connected in series across the 120-V source, assuming that their resistances remain the same?
A motorcycle is traveling up one side of a hill and down the other side. Determine the maximum speed that the cycle can have
Gas is confined in a tank at a pressure of 13.2 atm and a temperature of 21.5°C. what is the pressure of the gas remaining in the tank
questionthe michelson interferometer can be used to measure an index of refraction of a gas by placing the evacuated
A uniform, cylindrical pulley of mass M=12.7 kg and radius R=0.636 m rotates freely about a fixed horizontal axis. What is the magnitude of the angular acceleration of the pulley
The mass of mars is 6.419 times 10 26 square kg and the mass of a single proton is 1.673 times 10 negative 27 square kg. assuming mars is made entirely of protons, how various protons would make up mars.
A child of mass 15 kg is sitting on a sled while hisbrother pulls it up a snowy hill at steady speed. Find the tension in the rope
What practical application can we expect from particle physics a century or two from now? What use can we make of quark-gluon plasmas or strange quarks? How can we harness W- and Z-bosons or the Higgs boson?
a researcher measures the concentration of advil in a patients bloodstream as a function of time making measurements
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