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Two blocks collide on a friction less surface. After the collision, the blocks stick together. Block A has a mass M and is initially moving to the right at speed v. Block B has a mass 2M and is initially at rest. System C is composed of both blocks. (a) Draw a free-body diagram for each block at an instant during the collision. (b) Rank the magnitudes of the horizontal forces in your diagram. Describe your reasoning. (c) Compute the change in momentum of block A, block B, and system C.
A 1.50 ? 103-kg car starts from rest and accelerates uniformly to 15.2 m/s in 11.3 s. Find the average power developed by the engine
A zone plate is to be set up on an optical bench , where it will be used an an enlarging lens. find the focal length of the zone plate
Oxygen in the Lungs: In the lungs, the respiratory membrane separates tiny sacs of air (pressure1.00x105Pa) from the blood in the capillaries. These sacs are called alveoli. The average radius of the alveoli is 0.125 mm, and the air inside contains 1..
At one instant, a 19.0-kg sled is moving over a horizontal surface of snow at 5.00 m/s. find the magnitude of the average friction force acting on the sled while it was moving
If 3.43×108 electrons flowthrough the ground wire to Earth and the ground wire is thenremoved, what is the net charge on the electroscope?
74 L of an ideal monatomic gas is at an absolute pressure of 3 atm when the temperature is 25 C. How many moles of gas are there
Two identical 19.1?kg spheres of radius 12.7cm are 35.7cm apart (center-to-center distance). If they are released from rest and allowed to fall toward one another, what is their speed when they first make contact
As part of a carnival game, a 0.578-kg ball is thrown at a stack of 24.3-cm tall, 0.343-kg objects and hits with a perfectly horizontal velocity of 11.6 m/s. find the center of mass velocity of the tall object
a 0.465 kg wood block is firmly attached to a very light horizontal spring k 165 nm . it is noted that the
A compact disk, which has a radius of 6.0cm, What is the tengential acceleration of a point on the outer rim of the disk at the moment when its angular speed is 2.00 rev/s
a plane leaves seattle flies 75.0rm mi at 22.0circ north of east and then changes direction to 55.0circ south of east.
the coefficient of static friction between the tires of a car and a horizontal road is 0.495. as the car brakes what is
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