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A 72 kilogram water skier is being accelerated by a ski boat on a flat lake. The coefficient of kinetic friction between the water surface and the skier's skis is .25.
(a) Find the skier acceleration if the rope pulling the skier behind the boat applies a horizontal tension force of magnitude of 240 Newton to the skier.
(b) Find the skier horizontal acceleration if the rope pulling the skier exerts a force of 240 Newton on the skier at an upward angle of 12 degree.
(c) Describe why the skier's acceleration in part (b) is greater than that in part (a)
what is the maximum deformation of the bumper. The coefficient of kinetic friction for a 25 bobsled on a track is 0.10. What force is required to push it down a 5 incline and achieve a speed of 64 at the end of 75.
The plane of a 6.0 cm × 8.0 cm rectangular loop of wire is parallel to a 0.16-T magnetic field. The loop carries a current of 6.8 A. What is the magnetic moment of the loop
A hollow sphere of mass 15 kg and radius 8cm sits atop an inclined plane that is 10m in length and inclined at 30 degrees. What fraction of the sphere's total energy is rotational
In a Young's double-slit experiment, the seventh dark fringe is located 0.031 m to the side of the central bright fringe on a flat screen, which is 1.1 m away from the slits. The separation among the slits is 1.6 x 10 -4 m. What is the wavelength of..
Tarzan, in one tree, sights Jane in another tree. He grabs the end of a vine with length 21m that makes an angle of 50? with the vertical, Calculate Tarzan's speed just before he reaches Jane
A baseball has a mass of 140 grams and a softball has a mass of 280 grams. In which of the situations would they both have the same momentum.By how much will a bar long of the same material.
A 0.70 kg iron horseshoe is taken from a forge at 900°C and dropped into 3.00 kg of water at 13.0°C. find the total entropy change of the horseshoe-plus-water system
Let's us a simple model of a Wii Fit balance board with two forcemeters, one at the left edge and one at the right edge. The width of the board is 0.45 meters. If the left sensor reads F1= 300 N and the right sensor readsF2 = 275 N.
What is the electrostatic force on each particle.
What least horsepower must a motor have to be able to drag a 320 box along a level floor at a speed of 1.10 if the coefficient of friction is 0.50.
A machine shop grinding wheel accelerates from rest with a constant angular acceleration of 2.8rad/s2 for 7.6s, Find the total number of revolutions turned
Block A has a mass of 3.00 kg and rests on a smooth table and is connected to the block B which has a mass of 2.00 kg after passing over an ideal pulley Block B is released from rest. How long does it take Block B to travel 80 cm
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