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In New England, the horizontal component of the Earth's magnetic field has a magnitude of2.8 × 10-5T. An electron is shot vertically straight up from the ground with a speed of4.0 × 106m/s.What is the magnitude of the acceleration caused by the magnetic force? Ignore the gravitational force acting on the electron.
an astronaut is rotated in a horizontal centrifuge at a radius of 5.0 m.a what is the astronauts speed if the
Write an expression for a harmonic wave that has an amplitude of 18cm, a wavelength of 2.0m, and propagates to the left at 15 m/s
Define and discuss the various types of economic pressure tactics union members may use during a primary labor dispute which could affect a secondary employer.
you're helping with an experiment in which a vertical cylinder will rotate about its axis by a very small angle. you need to devise a way to measure this angle. you decide to use what is called an optical lever. How many degrees has the cylinder ro..
A spring-loaded pellet gun is designed to fire 3.30 g projectiles horizontally at a speed of47.9 m/s. What maximum force is required to load the gun
Consider a swinging pendulum with length l= 10 cm, a mass of 1 gm swinging at the end of it with an amplitude, Calculate the total energy ( potential plus kinetic) in ergs of the swinging pendulum
A block of mass m = 5.5 kg is pulled up a ? = 26° incline as in the figure with a force of magnitude F = 37 N. Find the acceleration of the block if the incline is frictionless
A 75 N man stands in the middle of a frozen pond of radius 20.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. How long does it take him to reach the south shore
calculate the de broglie wavelength of the followinga a 1.00g bullet with a velocity of 300 msb an h2 molecule with a
Atmospheric pressure is about 1.0 105 Pa on average. What is the downward force of the air on a desktop with surface area 0.1 m2
if a bullet with a mass of 0.008 kg is moving with a velocity of 454 ms and it hits a stationary block with a mass of
two tiny conducting spheres are identical and carry charges of -18.2 microc and 53.0 microc. they are separated by a
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