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A bat hits a moving baseball. If the bat delivers a neteastward impulse of 1.3 N-s and the ball starts with an initialhorizontal velocity of 3.8 m/s to the west and leaves with a 5.1m/s velocity to the east, what is the mass of the ball (in grams)?
A simple camera lens with focal object length fO= 3 cm perfectly focuses the the image of an object on a photographic film located a distance 14 cm away from the lens. What is the new magnification
The space shuttle releases a satellite into a circular orbit 700 km above the Earth, How fast must the shuttle be moving (relative to Earth's center) when the release occurs
Suppose you form a dipole from two point charges (with a magnitude of charge, q). the postive charge is located at the point x=y=0, z=d/2. and the negative charge is located at x=y=0, z=-d/2. determine the magnitude of the electric field along the..
A 310-km-long high-voltage transmission line 2.0 cm in diameter carries a steady current of 1,150 A, how many years does it take one electron to travel the full length of the cable
A railroad car of mass 40900 kg moving at 3.35m/s collides and couples with two railroad cars,each of the same mass as the single car and moving in the same direction at 1.53m/s. what is the speed of three cars after the collision.
One end of a nylon rope is tied to a stationary support at the top of a vertical mine shaft 80.0 m deep. Find the speed of a transverse wave on the rope
A steel wire on a guitar has a length of 0.500 m and a mass of 3.50 x 10^-3 kg. To what tension must the wire be tightened
Suppose you hold a f=5.0 cm magnifying glass 3.0 cm from a 2.0 mm high ant. how large is the image of the ant
questiona baseball is hit with a speed of 30.0 ms at an angle of 43.0 degrees. it lands on the flat roof of a 12 meter
A small current element at the origin has a length of 1.2 mm and carries a current of 3.9 A in the +z direction. Find the magnitude and direction of the magnetic field due to this current element at the point (0, 3.7 m, 2.0 m).
A 7.3-{\rm N} force pulls horizontally on a 2.0-{\rm kg} block that slides on a smooth horizontal surface. What is the tension in the string
A 10 kg block of ice slides along a frictionless surface that is inclined at a 60 degree angle with the horizontal. What is the weight of the block
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