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A 10kg block is set moving with an initial speed of 6 m/s on arough horizontal surface. If the force of friction is 20N,approximately how far does the black travel before it stops?
A light spring-gun projectile launcher is mounted on an 0.493 kg air track glider. What is the speed of the air-track glider after the gun is fired
Blocks A (mass 2.00kg) and B (mass 10.00kg) move on a frictionless, horizontal surface. Initially, block B is at rest and block A is moving toward it at 2.00 m/s. Find the velocity of each block after they have moved apart
Two asteroids of equal mass collide with a glancing blow. Asteroid A, which was originally traveling at 40.0 m/s, is deflected 30.0? from its original direction, Find the speed of each asteroid after the collision
After 6.00 kg of water at 77.3 oC is mixed in a perfect thermos with 3.00 kg of ice at 0.0 oC, the mixture is allowed to reach equilibrium. find the change in entropy that occurs
A 15 g rifle bullet traveling 190 m/s buries itself in a 3.8 kg pendulum hanging on a 3 m long string, that makes the pendulum swing upward in an arc. Determine the horizontal component of the pendulum's maximum displacement.
It has been suggested that rotating cylinders about 8.0 mi long and 5.0 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acce..
A uniform 1.80m ladder of mass 6.30kg is leaning against a vertical wall while making an angle of 53.0%u2218 with the floor. How much work did this person do against gravity
Your friend recently purchased a musical instrument that generates sound waves using several strings. Determine the length of the strings of this instrument
An airplane flies from Boston to San Francisco (a distance of 5000 km) in the morning, then immediately returns to Boston. What is the average speed relative to the ground on the way back to Boston
A sign weighing 498 N is suspended at the end of a uniform rod 4.04 m long weighing 663 N as shown below. What is the tension in the support cable
The speed of light in a certain substance is 89% of its valuein water. What is the index of refraction of this substance
The air inside a bicycle tire pump has 206 joules of work done on it as 78.6 joules of heat is conducted away from it
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