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0.120 stone rests on a frictionless, horizontal surface. A bullet of mass 5.00 , traveling horizontally at 370 , strikes the stone and rebounds horizontally at right angles to its original direction with a speed of 200 .
a) Compute the magnitude of the velocity of the stone after it is struck.
b) Compute the direction of the velocity of the stone after it is struck.
c) Is the collision perfectly elastic? yes or no
Illustrate what is the smallest angle of incidence with respect to the top mirror, such that the laser beam hits the mirrors in each way?
An 80 N box initially at rest is pulled by a horizontal rope on a horizontal table. Find the friction force on the box if the pull is 25 N and the box remains at rest
q1. the red giant betelgeuse has the surface temperature of 4000 rm k and is 500 times the diameter of our sun. if our
A highway curve has a radius of 125 m. At what angle should the road be banked so that a car traveling at 27.4 m/s has no tendency to skid sideways on the road.Find an acceleration of box and ramp.
A car travels with an initial velocity of 2 meters per second, at initial position of 0 meters with an accerleration of 2 meters per second at time of 2.0 seconds
A person exerts a horizontal force of F = 190 N in the test apparatus. (h of arm = 0.34 m. And h of flexor muscle= .054 m) Find the horizontal force M that his flexor muscle exerts on his fore arm.
An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges. Illustrate what is the speed of the electron when it is 10.0 from charge 1?
One cubic centimeter of a cumulus contains 250 water drops, which have a typical radius of 10 μm. (a) How many cubic meters of water are in a cylindrical cumulus cloud of height 3.0 km and radius 1.1 km.
You create a diffrent kind of pendulum by swinging a meter stick (mass m) on its end. It swings with small oscillations. Determine the angular frequency w ( I=1/3 ML ^2)
A 12.69 g ice cube at -6.33 oC is place in an aluminum cup whose initial temperature is 135.39 oC. What is the mass in grams of the cup
Because a concave lens cannot form a real image of a real object, it is difficult to measure its focal length precisely. What is the focal length of the concave lens
A woman on a bridge 81.0 m high sees a raft floating at a constant speed on the river below. Find the speed of the raft
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