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A 58-kg water skier is being pulled by a nylon tow rope that is attached to a boat. The unstretched length of the rope is 15 m and its cross-sectional area is 2.0 10-5 m2. As the skier moves, a resistive force (due to the water) of magnitude 120 N acts on her; this force is directed opposite to her motion. What is the change in the length of the rope when the skier has an acceleration whose magnitude is 0.90 m/s2?
Compute the ground state energy and wavefunction
A guitar string with a mass of 12 g is 80 cm long and attached to the guitar at two points separated by 65 cm. What is the frequency of its fundamental note when it is placed under a tension of 170 N? Answer A) 74 Hz B) 82 Hz C) 93 Hz D) 150 Hz E)..
An airplane is flying with a velocity of 86.0 at an angle of 23.0 above the horizontal. When the plane is a distance 114 straight above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.
A projectile is fired at an upward angle of 45 degrees from the top of a 265 m cliff with a speed of 350 m/s. Illustrate what will be it's speed when it strikes the ground below?
Light of wavelength 420 nm is incident normally on a film of water 1.0 µm thick. The index of refraction of water is 1.33, What is the wavelength of the light in the water
Find the forces that act on each of the three charges. a) q = -1.0 µC in vector form b) q= 3 µC in vector form b) q =5 µC in vector.
A piston, A, as shown below, has a diameter of 0.54cm. A second piston, B has a diameter of 3.7 cm. find the force, F, necessary to support the 500N weight in the absence of friction.
What are the velocities of the two people after the snowball is exchanged? Disregard friction between skate and the ice.
Two 1.5cm -diameter disks face each other, 2.0mm apar, What launch speed must the proton have to just barely reach the positive disk
Kingbird Corporation made a contribution to a qualified charitable organization of $6,300 in cash (not comprised in any of the above items). Determine Kingbird's charitable contribution deduction for the current year.
A single slit has a width of 2.1x10^(-6)m and is used to form the diffraction pattern. Find out the angle that locates the second second dark fringe when the wavelength of the light is 430 nm.
The coefficient of static friction
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