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Packages in an automobile parts supply house are transported to the loading dock by pushing them along a roller track with very little friction. At the instant shown packages B and C are at rest and package A has a velocity of 6 ft/s. Knowing that the coefficient of restitution between the packages is 0.3, determine
(a) The velocity of package C after A hits B and B hits C,
(b) The velocity of A after it hits B for the secondtime.
A 42.0-kg boy, riding a 1.50-kg skateboard at a velocity of 5.50m/s across a level sidewalk, jumps forward to leap over a wall.Just after leaving contact with the board, the boy's velocityrelative to the sidewalk is 6.00 m/s, 8.30° above thehorizo..
a carnot heat pump operates between an outdoor temperature of 258 k and an indoor temperature of 283 k. find its
After a hard rain, you walk out into the parking lot and notice an oil sheen on top of a puddle of water. What is the minimum thickness of the oil
a child operating a radio-controlled model car on a dock accidentally steers it off the edge. the cars displacement 0.9
Two blocks are connected on a horizontal frictionless table and pulled to the right with a force F= 60 N. compute the tension in the string connecting the two blocks
An interplanetary spaceship passes through the point in space where the gravitational forces from the moon and the earth on the ship exactly cancel. How far from the center of the earth is it
A laser utilized in eye surgery emits a 3.44 mJ pulse in1.19 ns, focused to a spot 31.5 um in diameter on the retina. Compute (in SI units) the power per unit area at the retina.(This quantity is called the irradiance.)
A person in Inertial system S sees two objects moving parallel to one another on a straight path. Find the speed of one object with respect to the other
A dish of hot food has an emissivity of 0.48 and emits 15 W of thermal radiation. how much power will it radiate
A potter's wheel having a radius 0.53 m and a moment of inertia of 11.4 kg, determine the effective coefficient of kinetic friction between the wheel and the wet rag
How did the change in the weight of the bob affect the resulting period and frequency - How did the change in amplitude affect the resulting period and frequency?
A 30-06 bullet has a mass of 0.010 kg. If the average force on the bullet is 7200 N, what is the bullet's average acceleration?
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