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Steve Romeo is throwing pebbles gently up to Sara Juliet's window, and he wants the pebbles to hit the window with only a horizontal component of velocity. He is standing at the edge of a rose garden 8.0 meter below her window and 9.0 meter from the base of the wall. Compute how fast are the pebbles going when they hit her window?
Ball A is dropped from the top of a building of height h at the same instant that ball B is thrown vertically upward from the ground. At what height does the collision occur
Consider the arrangement of 2 point masses (M and 3M) with the value M = 2.00 kg connected by a massless rod of L = .800 m. What is the rotational kinetic energy of the system associated with its rotation in part b
The wall of a house consists of three layers: a wooden outer wall with an R factor of 1.0, a 3in layer of fiberglass insulation with an R factor of 11, what is the rate of heat loss throug an 8ft by 15ft section of this wall
In order to convert a tough split in bowling, it is necessary to strike the pin a glancing blow, Calculate the final speed of the pin
When the gas in the tank is at room temperature, then what volume of gas can be compressed into the tank? The gas is measured at standard atmospheric pressure
As a spacecraft approaches a planet, the rocket engines on it are fired (turned on) to slow it down so it will go into orbit around the planet. compute how long (in minutes) must the engines be fired
A point mass of m1 = 2.3 kg is placed at the origin. Masses m2 = 5.4 kg and m3 = 7.6 kg are placed at 3.5 m and -5.8 m on the x-axis, respectively. Find out the location on the x-axis of the center of mass.
The suspended 2.8 kg mass on the right is moving up on a pulley, the 1.6 kg mass slides down the 21 degree ramp, and the suspended 9 kg mass on the left is moving down on a pulley. The coefficient of friction between the block and the ramp is 0.12..
A railroad car with a mass of 20,000 kg rolls into a second stationary car with a mass of 40,000 kg. How fast was the first car moving before the collision
a speeder passes a parked police car at a constant speed of 34.9 ms. at that instant the police car starts from rest
A 1kg ball is fastened to a string of length 1.5m. It can rotate at an average angular velocity of 10 rad/s. What is its moment inertia about the axis of rotation
A person in a car is driving down a straight road. The instantaneous acceleration is decreasing with time, What is happening to the speed of the car
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