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A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 3.00 m/s, and her takeoff point is 1.80 m above the pool.
(a) How long are her feet in the air?
s
(b) What is her highest point above the board?
m
(c) What is her velocity when her feet hit the water?
An object whose weight is 100 Ibf experiences a decrease in kinetic energy of 500 ft. Ibf and an increase in potential energy of 1600 ft. Ibf. The initial velocity and elevation of the object, each relative to surface of the earth, are 50 ft/s and 40..
The propulsion system on a 1500kg rocket car fires for 15 seconds and the propulsion force is equal to F= x(80-x). What is the average speed for the entire two stage event
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an electronically charged particle accelerates uniformly from rest to speed v while traveling a distance x show that
A 3.0kg block rests on a tabletop. A 6.00 g bullet moving horizontally with a speed of 180 m/s is shot into the block and sticks in it. Find the speed of block just after full impact
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An object moves 2.90m in the + x- direction under the influence of a 148 N force directed 42 degrees above the x-axis. Find the work done on the object
Two long parallel wires are 6cm apart and carry currents of 3 and 9amps resepctively in opposite directions
A circular disk, centered at the origin of a coordinate system, is rotating at a constant angular velocity ?0. In Cartesian coordinates, what is the velocity vector of the point P located at the cartesian coordinate (1,1).
Two negative point charges are separated by 16 and feel a mutual repulsive force of 1.55. The charge of one is three times that of other.
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