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A 8 g bullet has a speed of 180 m/s and embeds itself into a 500 g block. The block is initially at rest sitting on a rough surface which has a coefficient of kinetic friction equal to 0.4.
A. What is the speed of the block after the collision?
B. What fraction of the initial kinetic energy of the bullet remains after the collision?
C. How far does the block slide after the collision before coming to rest?
A force of 15 N acting at an angle of 25 degrees to the horizontal is used to pull a box a distance of 5 m across a floor. How much work is done
Must show all work!!! A block of mass m =.5kg is pushed against a wall with a force p = 4n orientated at an angle of 50 degrees. find the coefficient of static friction between the block and the wall
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A blue ball is thrown upward with an initial speed of 23.3 m/s, from a height of 0.7 meters above the ground. 2.9 seconds after the blue ball is thrown, What is the speed of the blue ball when it reaches its maximum height
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If the magnitude of the drift velocity of free electrons in a copper wire is 9.12 10-4 m/s, what is the electric field in the conductor
If a electron after being accelerated by a potential difference of 100 V enters in a uniform magnetc field of 1T perpendicular. Calculate its radius of circular path described by it
At some instant the velocity components of an electron moving between two charged parallel plates are vx = 1.90 105 m/s and vy = 3.00 103 m/s. What is the electron's acceleration in the field
A bar of length .15 m, width .05 m and negligible height is spinning about its center of mass at 2 radians per second. what is their final angular velocity
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