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What is meant when it is said that something is quantized? Distinguish between a proton and a photon. How are the frequency and wavelength of an electromagnetic wave related?
A 0.655kg stone is moving in a vertical circular path attached to a string that is 68.0cm long. The stone is moving around the path at a constant frequency of 2.35 rev/sec. Find the tension in the string at the lowest point, and the highest point.
Two ice skaters, with masses of 50.0kgand 85.0kg, are at the center of a 60.0m-diameter circular rink. The skaters push off against each other and glide to opposite edges of the rink.
two identical particles each with a mass 2.0 mg and a charge of 25 nc are released simultaneously from rest when the
A 15-kg block rests on a level frictionless surface and is attached by a light string to a 5.0-kg hanging mass where the string passes over a massless frictionless pulley
A long, thin rod (length = 5.0 m) lies along the x axis, with its midpoint at the origin. find the magnitude of the net torque applied to the rod
A low-voltage device like an electric bell obtains its electricity from a 120 V source, but requires only 4–8 V. Thus,it requires a small transformer. This often takes the form of an autotransformer, which has only one winding around a single core..
A jet airplane flying from Darwin, Australia, has an air speed of 256 m/s in a direction 5.0° south of west. What is the magnitude of the velocity of the airplane relative to the Earth in m/s
You are looking straight down from an aeroplane, with the Sun directly overhead. What visible wavelength(s) is/are reflected most brightly due to constructive interference?
A skier approaches the base of an icy, frictionless hill with aspeed of 13.9 m/s. The hill slopes upwardat18.0^\circ above the horizontal.Find the acceleration of this skier:
A mass of 3.0 kg is subject to a force F(x) = 8.0 N - (4.0 N/m)x The potential energy of the mass is zero at x = 0. What is the potential energy of the mass at x = 2.0 m?
a submarine dives to a depth of 302 feet in the ocean. what is the force in pounds acting on a hatch that has an area
If a particle undergoes SHM with amplitude.21 m, what is the total distance it travels in one period
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