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An object of mass m undergoes an elastic collision with anidentical object that is at rest. The collision is not head-on. Show that the angle between the velocities of the two objects after the collision is 90o.
A projectile is fired with an initial velocity of 20 m/s at 50° above horizontal. At the projectile's highest point, what is its velocity?.What is its acceleration?
A mass moves from rest down an inclined plane with an angle of 60 degrees at the top. find the acceleration of the mass down the ramp
The so-called "hydrogen alpha (Ha) line" is a specific wavelength of red light caused by excited atomic hydrogen. What is the frequency ( in units of cycles per second, or 1/s) of Ha in vacuum
A father (m = 65 kg) and son (m = 38 kg) are standing facing each other on a frozen pond. The son pushes on the father and finds himself moving backward at 3.0 m/s after they have separated. How fast would the father be moving.
The only force acting on a 10.0 kg canister that is moving in an xy plane has a magnitude of 5.0 N. How much work is done on the canister by the 5.0 N force during this time
The x, y, and z components of a magnetic field are Bx = 0.12 T, By = 0.18 T, and Bz = 0.17 T. A 25 cm wire is oriented along the z axis and carries a current of 5.0 A. What is the magnitude of the magnetic force that acts on this wire?
A very large non conducting plate lying in the xy-plane carries a charge per unit areaof 6σ. A second such plate located at z = 5.00 cm and oriented parallel to the xy-plane carries a charge per unit areaof -3σ. Find the electric field for the fol..
Two identical diverging lenses are separated by 15 cm. The focal length of each lens is -8.0 cm. Determine the final image distance relative to the lens on the right
A man drags a 72.0 kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. The crate is tilted 26 degrees above the horizontal, and the strap is inclined 68 degrees above the horizontal. The center ..
Somewhere between the Earth and the moon, gravity from these two bodies on the space pod would cancel. Is this location nearer the Earth, the moon, or in the middle (having the same distance between) of the earth and the moon.
A 200 MW laser pulse is focused with a lens to a diameter of2.0μm. find the laser beam's electric field amplitude at the focal point
q1. gamma-ray busters are objects in the universe that emit pulses of gamma rays with high energies. the frequency of
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