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A 0.480 kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 24.0 N/m. The block rests on a frictionless surface. A 0.052 kg wad of putty is thrown horizontally at the block, hitting it with a speed of 2.20 m/s and sticking. How far does the putty-block system compress the spring?
On the Moon\'s surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected. What is the difference in travel time for light that travels only through space to the moon and back and light that travels through..
A curve in a highway has radius of curvature 110 m and is banked at 3.4°. On a day when the road is icy, what is the safest speed to go around the curve
two plates of radius R are separated by a distance 2h.the top plate rotates with velocity w. find the velocity as a function of radius r and and height z
question1a relaxed biceps muscle requires a force of 25.0n for an elongation of 3.0 cm below maximum tension the same
A disc-shaped grindstone of mass 3.0 kg and radius 8.0 cm is spinning at 600 rev/min. What is the average torque exerted by the axe on the grindstone
A 42.0-kg child swings in a swing supported by two chains, each 3.05 m long. The tension in each chain at the lowest point is 345 N. Find the child's speed at the lowest point
What is the minimum uncertainty in position, in nm, of an electron whose velocity is known to be between 2.30×105m/s
A flight attendant pulls her 63N flight bag a distance of 312m along a level airport floor at a constant velocity. The force she exerts is 39N at the angle of 59° above the horizontal.
A 10.00 kg grocery is pushed 12.0 m along an aisle by a shopper who exerts a constant horizontal force of 40.0 N. a.) What work is done on the cart? b.)If all frictional forces are neglected, and the cart starts form rest, what is the grocery cart..
q1. two bicycle tires are set rolling with the equivalent initial speed of 5.0 ms along a long straight road and
In Larry Niven's science-fiction novel Ringworld, a rigid ring of material rotates about a star. The inhabitants of this ring world live on the starlit inner surface of the ring, What is the length of a year on this planet
How much energy must be added to a bowl of 125 popcorn kernels in order for them to reach a popping temperature of 175celsious? assume that their initial temperature is 21 celsious, that specific heat capacity of popcorn is 1650 j/kgcelsious, and ..
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