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A skier starts from rest at the top of a hill that is inclined at10.5 degrees with the horizontal. The hillside is 200 meters long,and the coefficient of friction between the snow and the skis is.075
How far does the skier move along the horizontal portion ofthe snow before coming to rest?
questiona convex lens is a transparent device that uses refraction to twist and focus light from an object forming a
A uniform steel beam of length 5.00m has a weight of4.50*103 N. One end of the beam is bolted to avertical wall. The beam is held in a horizontal position by acable attached between the other end of the beam and a point on the wall.
A positron (q = +e) moves at 4.6 107 m/s in a magnetic field of magnitude 0.50 T. The magnetic force on the positron has magnitude 1.5 10-12 N. What is the angle between the velocity and the field
an artillery shell is fired with a minimal velocity of 420 ms at 53o above the horizontal. to clear an avalanche it
A bicycle is moving to the right at a speed of Vo= 20 mph on a horizontal and straight road. The radius of thebicycle's wheels is R = 1.15 ft. Let P be a point on the peripheryof the front wheel.
A supply plane needs to drop a package of food to scientists working on a glacier in Greenland. How far short of the target should it drop the package
Determine the position q1 of the image formed by the first converging lens.
two charges attract each other with a force of 2.5 n. what will be the force if the distance between them is reduced to
An electron is inside a solenoid, 28 cm from the solenoid axis. At what rate is the solenoid's magnetic field changing
A transformer has 330 primary turns and 1340 secondary turns. The input voltage is 120 V the output current is 15 A. What are the output voltage and input current
The Hubble Space Telescope orbits Earth 601 km above Earth's surface. What is the period of the telescope's orbit
A beam of neutrons with a kinetic energy of 2.4x10-4eV falls on a slit of width 10-4m. What will be the angular spread of the beam after it passes through the slit
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