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A skier is gliding along at 3.09 m/s on horizontal, frictionless snow. He suddenly starts down an 11.9 degree incline. His speed at the bottom is 26.5 m/s.
a) Compute the length of the incline?
b) Compute how long does it take him to reach the bottom?
A mail bag with a mass of 120 is suspended by a vertical rope of length 8.00. How much work is done by the worker in moving the bag to this position
The Hall effect can be used to determine the density of mobile electrons in a conductor. Find the density of mobile electrons in the material
A layer of ice has formed on a small pond. The air just above theice is at -5.99 °C, the water-ice interface is at 0 °C, how thick is the layer of ice
A parallel plate capacitor has a capacitance C when there is no dieletric inside of it. Suppose a wedge of material with dielectric constant K is inserted in between the plates of the capacitor, find the new capacitance with this dielectric inserte..
q1. blood is capable of carry excess energy from the interior to the surface of the body where the energy is dispersed
If 4.0 L of antifreeze solution(specific gravity = 0.80) is added to 3.5 L of water to make a 7.5 L mixture, what is the specific gravity of the mixture
A submarine of mass 2.1x 103 kg and initially at rest firesa torpedo of mass 260 kg. The torpedo hasan initial speed of 100.1 m/s. What is the initial recoil speed of the submarine in m/s? Neglect the dragforce of the water.
An insulated vertical piston cylinder device initialy contains 10kg of water, 6 kg of which is in the vapor phase. The mass of the piston is such that it maintains a constant pressure of 200 kPa inside the cylinder.
In order to calculate the number of ways of arranging a givenamount of energy in a tiny block of copper, How many atoms are in the copper block
A positively charged particle of mass 7.60 10-8 kg is traveling due east with a speed of 40 m/s and enters a 0.39-T uniform magnetic field. compute the magnitude of the magnetic force acting on the particle
A softball of mass 0.220 kg that is moving with a speed of 5.5 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. calcultae the velocity of the target ball after the collision
After having collected samples along the shore all day long, a marine biologist walks back to her campsite, 1.69 km away. What distance did the dog run
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