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A 1328 kilogram car moving at 19.1 meter per second in the +x direction hits from behind a second car moving at 13 meter per second in the same direction. If the second car has a mass of 790 kilogram and a speed of 15.1 meter per second right after the collision, obtain the velocity of the first car after this sudden collision?
After impact, the block slides 7.5 m before coming to rest. If the coefficient of kinetic friction between block and surface is 0.650, illustrate what was the speed of the bullet immediately before impact?
A beam of initially unpolarized light passes through a sequence of three ideal polarizers. What is the ratio of the intensity of light
A box of bananas weighing 40.0 Newton rests on a horizontal surface. If no horizontal force is applied to the box and the box is rest, find how large is the friction force exerted on the box
Suppose a monochromic light strikes a grating at normal incidence. The first order diffractions lines appear at the angle 23°, what is the frequency of the light that passes through
In an electric shaver, the blade moves back and forth over adistance of 2.1 mm in simple harmonic motion, with frequency 118Hz. obtain the magnitude of the maximum blade acceleration
A proton accelerates from rest in a uniform electric field of650 N/C. At some time later, its speed is1.40 x 106 m/s. What is the magnitude of the acceleration of the proton?
A golf ball of mass 0.045 kg is hit off the tee at a speed of45 m/s. The golf club was in contact with the ball for 5.0 x10-3 s. evaluate the average force exerted on the ball by the golfclub
a metallic sphere has a charge of 3.8 nc. a negatively charged rod has a charge of -6.0 nc. when the rod touches the
At a rock concert, the engineer decides that the music isn’tloud enough. He turns up the amplifiers so that the amplitude ofthe sound where you are sitting increases by 50.0%.
The magnetic force exerted on a 1.3 - m segment of straight wire is 1.6 N. The wire carries a current of 3.1 A in a region with a constant magnetic field of 0.52 T. What is the angle between the wire and the magnetic field?
a van de graaff machine has a dome of radius 2.0 m. a motor causes a charged insulating belt to travel continuously
A girl delivering newspapers covers her route by traveling 9.99 blocks west, 4.00 blocks north, and then 1.00 blocks east
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