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The loading dock at the Walmart where you work has a bumper to protect it from mistakes by truck drivers. One icy day a truck with a total mass of 4500 kg is backing into the dock at 1.95 m/s when it loses all traction and slides into the bumper. If the bumper has a spring constant of 1.50 x 105 N/m, how much will it be compressed when the truck stops moving backwards? Give your answer in meters to three significant digits.
A square insulating sheet 90.0cm on a side is held horizontally. The sheet has 6.15nC of charge spread uniformly over its area. Estimate the electric field at a point located a distance 135m above the center of the sheet
A circular cylinder 0.1ft in outside diameter and initially of temperature 320F is quenched in a batch of engine oil at 140F. The oil moves in cross flow over the cylinder at 5.5ft/s. Determine the initial rate of heat transfer from the cylinder ..
A model airplane is being flown on a guideline that can sustain at most 180 Newton of tension. Determine the radius of the smallest horizontal circle in which the plane can be flown
A charged belt, 75 cm wide, travels at 25 m/sbetween a source of charge and a sphere. The belt carries chargeinto the sphere at a rate corresponding to 100 µA. Compute the surface charge density on the belt.
A skier of mass 113 kilogram travels down a frictionless ski trail. determine the work done by gravity on the skier
Shamu weighs 10000 lbs. on earth. What is Shamu's mass (in kg) on Earth, What is shamu's mass (in kg) on the moon
a glass rod with a refractive index of 1.55 is ground and polished at both ends to hemispherical surfaces with radii of
In a European country a bathroom scale displays its reading in kilograms. When a man stands on this scale, it reads 86.1 kg. find the magnitude of the force he exerts on the chin-up bar
According to Kepler's third law, the orbital period T of a planet is related to the radius R of its orbit by T2 R3. What is the planet's orbital period
A 2.0-cm-diameter spider is 1.50m from a wall. Determine the focal length of a lens that will make a half-size image of the spider on the wall
An electron is accelerated to a speed where its total energy is 229 times larger than its rest energy. What is the momentum of the electron measured in MeV/c units
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
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