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A tennis ball with a mass of 175.0 grams moves with a speed of 15.75 m/s towards all. the ball rebounds with a speed of 12.99 m/s after being in contact with the wall 71.99 ms, find the force that acted on the ball.
A sinusoidal electromagnetic wave emitted by a cellular phone has a wavelength of 35.4 cm and electric field amplitude of 5.40 x 10-2 V/m at a distance of 250 m from the phone. Calculate the magnetic field amplitude
A diamond’s index of refraction for red light, 656 nm, is 2.410, while that for blue light, 434 nm, is 2.450. Assume white light is incident on the diamond at 30.0°. Discover the angles of refraction for these two colors.
a 20 Kg block slides along a frictionless table at 20 m/s. What will be the final momentum and kinetic energy of the joined blocks
q.1. a particle leaves the origin with an initial velocity 6.67 ms and a constant acceleration - 2.48 - 4.29 ms2.
A biker rides off a 38m tall cliff horizontally and lands on a 2m tall ramp. What is the vertical displacement of the biker
A beam of electrons moving in the x direction at 8.8 x 106 m/s enters a region where a uniform magnetic field of 430 G points in the y direction. Find how far into the field region does the beam penetrate
A 1 200-N uniform boom at f 5 65° to the horizon- tal is supported by a cable at an angle u 5 25.0° to the horizontal, calculate the tension in the support cable
asssume that in a particular vacuum tube the potential of the anode is 340 V higher than that of the cathode. If an electron leaves the surface of the cathode with zero initial speed, what is its speed when it strikes the anode.
A rifle is fired horizontally. The buillet is found to havetraveled 200 meters. at what speed must the bullethave been traveling as it left the barrel
A 3.7 kg bucket of water is raised from a well by a rope. find the force exerted by the rope on the bucket of water
A force of 250N acts on a mass of 50Kg for 8 seconds. If the mass is initially at rest, determine the acceleration, the final velocity and the displacement.
A ball is thrown horizontally from the roof of a building 45.0m tall and lands24.0m from the base. What was the ball's initial speed
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