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A uniform chain with a mass of 1.47 kg per meter of length is coiled on a table. One end is pulled upward at a constant rate of 0.381 m/s.
a) Calculate the net force acting on the chain.
b) At the instant when 0.151 m of the chain has been lifted off the table, how much force must be applied to the end being raised?
The track is 400 meters lonf and linear. Car A accelerates at 3 meters per second and Car B accelerates at 3.1 meters per second. How far behind is Car A when Car B passes the finish line
How much work was done by the lift on the automobile.
assume that friction is so small that it can be ignored. a force toward the right of constant magnitude is applied to
A solid sphere is released from rest and allowed to roll down a board that has one end resting on the floor and is tilted at 22° with respect to the horizontal. find the sphere's speed when it reaches the lowest end of the board
A mountaineer uses a global positioning system receiver to measure his displacement from base camp to the top of Mount McKinley, what is the displacement in going from base camp to the top
A shopper pushes a cart 39 m south down one aisle and then turns 90.0° west and moves 27 m. He then makes another 90.0° turn and moves 14 m.
An inexpensive microscope has a tube length of 12.0cm and its objective lens is labeled with a magnification of 10x, Calculate the focal length of the objective lens
Find the length of a side of a cube having a mass of 1.3 kg and the density of nuclear matter, taking this to be 2.3 ? 1017 kg/m3
About the axis of the rod.ωA ball of mass m is attached by two strings to a vertical rod. The entire system rotates at constant angular velocity.
A diver leaves a 3-m board on a trajectory that takes her 2.2m above the board and then into the water a horizontal distance of 2.5m from the end of the board. At what speed did she leave the board
The objects are then released from rest. Assuming that the particles never reach the pulley, and also that the particles do not rebound when they strike the ground.
A coffee filter of mass 1.2 grams dropped from a height of 3 m reaches the ground with a speed of 0.7 m/s. How much kinetic energy Kair did air molecules gain from the falling coffee filter.
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