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A bicyclist starts from rest at the top of a hill and rolls down the hill without pedaling. Assuming there is no friction and the bottom of the hill is 15 meters below the top, what is the bicyclist's speed at the bottom of the hill? show all work.
A 50,000 kg locomotive is traveling at 60.0 m/s when its engine and brakes both fail. How far will the locomotive roll before it comes to a stop
A 2.6kg block slides along a frictionless surface at 1.9m/s . A second block, sliding at a faster 5.0m/s , collides with the first from behind, What was the mass of the second block
A nail projects 25.0 mm horizontally outward from a wall. A 400 N picture is hung from the end of the nail and the nail deflects downward by 2.00 x 10^-5. what is the diameter of the nail
A certain pipe has resonant frequencies of 385 Hz, 495 Hz, and 605 Hz, with no other resonant frequencies between these values. How long is this pipe
Four charged particles rest at the corners of a square of side a = 0.30 m. Charges 1 through 4 are 10, 20, 30 and 40 µC, Determine the electric field at the center of the square
A 20-kg rotating disk of radius 0.30m has an angular momentum of 0.40kg?m2/s. What is the angular speed of the disk
A 125 kg satellite experiences a gravitational force by the Earth of 790 N, What is altitude of satellite and What is the radius of the satellite's orbit
A charge +q is located at the origin, while an identical charge is located on the x axis at x = +0.50 m, Where should the third charge be located
A solid disk of radius R and mass 2.72 kg is spinning at angular velocity 63.9 rpm about a vertical axis. What is the mass of the second disk
A highway has an unbanked curve with a radius of 100m. An engineer suggest banking the curve so that it is safer in icy weather. How does banking the curve make it safer
A 3000 kg lunar lander is in orbit 50 km above the surface of the moon. how much work must the thrusters do
A 63.5kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.35kg tool away from her at 3.60m/s relative to the space station. With what speed will she begin to move\\
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