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An automobile of mass 1500 kg moving at 25 m/s colides with a truck of mass 4500 kg at rest. This time, the car and the truck bounce aff each other completely elastically. What is the final velocity of the truck after the collision? Call the direction of the automobile before the collision positive.
A charge of -3.9 micro-coulombs is launched from the positive plate of a large capacitor to the negative plate. At the positive plate, what is the distance between the plates
while unloading furniture, a worker slides a heavy box down the ramp on the rope. find the mass of the box
A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates (1.4 m, 5.7 m) while a constant force acts on it. How much work is done by the force on the coin during the displacement
A piece of wood 350 mm × 350 mm and 15 mm thick conducts heat through its thickness under steady state conditions. Determine the coefficient of thermal conductivity for this wood
Electric bees. As they fly through the air, honeybees can pick up a small amount of electric charge, Find the magnitude of the electric force on the bee in the electric field just above Earth's surface, 130N/C directed vertically downward
assume a planet had a density that varied with radius according to the equation, ρ =A/r, where A is some constant. Determine a formula that gives the central pressure for this kind of planet.
A disk released from the top of an inclined plane has a speed of 5.52 m/s at the bottom. How high is the upper end of the inclined plane
The magnetic field 7.5 cm directly above the center of a 25-turn coil of radius 15cm is 0.80mT. obtain the current in the coil
A 200?F defibrillator capacitor is charged to 1500 V.When fired through a patient's chest, it loses 95% of its charge in 40 ms
A 80 kg diver steps off a 13 m tower and drops from rest straight down into the water. If he comes to rest 4.1 m beneath the surface, find out the average resistance force exerted on him by the water.
A circular saw blade 0.200 m in diameter starts from rest. Find the angular acceleration and the angle through which the blade has turned in this time
A box of mass 72.0 kg is connected to a second box with a mass of 34.0 kg. find the magnitude of the tension in the string between the two boxes
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