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In order to heal properly from a fractured thigh a patient's leg must be kept under traction. In the system shown below the leg a kept under traction by a series of ropes and pulleys attached to a weight W. If the physical therapist specifies that the traction force directed along the leg must be 29N, what should the attached weight W be?
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In an emergency stop to avoid an accident, a shoulder strap seatbelt holds a 60 kilogram passenger in place. find the average force applied to the passenger by the seat belt
A pail of water is rotated in a vertical circle of radius 1.00 m (the approximate length of a person arm). What must be the minimum speed of the pail
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a convergent lens has a focal length of 7cm. a 2cm tall image forms 30cm from the lens.a how far is the magnification?b
If a projectile is launched horizontally (launching angle = 0.0) at a height of y above the table top, and it falls on the table top, How long does it take the projectile to fall onto the table top
A 1.10 liter flask contains a certain quantity of ideal gas at 320 K. Then an equal number of molecules of the same gas is added to the flask, after which the absolute pressure is 1.35 times its original value. Define is the final temperature?
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