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As a laudably skeptical physics student, you want to test Coulomb\'s law. For this purpose you set up a measurement in which a proton and an electron are situated 913 nm from each other and you study the forces that the particles exert on each other. As expected, the predictions of Coulomb\'s law are well confirmed. You find that the forces are? and that the magnitude of each force is?
A small block of mass m = 1.8 kg slides, without friction, along the loop-the-loop track shown. What is the kinetic energy of the mass at the point A on the loop
A 40-cm-long tube has a 40-cm-long insert that can be pulled in and out. A vibrating tuning fork is held next to the tube. What is the frequency of the tuning fork
A laser beam with vacuum wavelength 600 nm is incident from air onto a block of glass. find the wavelength of the light in glass
A three-step cycle is undergone by 3.4 mol of an ideal diatomic gas: the temperature of the gas is increased from 210 K to 400 K at constanr volume, What is the efficiency of the cycle
Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. Determine the current in the rods
a standing wave oscillating on a string at frequency f_0. How many antinodes will there be if the frequency is increased to 3f_0
Water at a pressure of 3.4 atm at street level flows into an office building at a speed of 0.5 m/s through a pipe 7.00cm in diameter. The pipes taper down to 2.6 cm in diameter by the top floor, 28m above.
Ball 1, with a mass of 140g and traveling at 11.0m/s , collides head on with ball 2, which has a mass of 310g, What are the final velocities of each ball if the collision is perfectly inelastic
A monochromatic beam of light is absorbed by a collection of ground-state hydrogen atoms in such a way that six different wavelengths are observe, what is the shortest wavelength
Two ants race across a table 73cm. long. One travels at 4.18cm/s and the other at 3cm/s. When the first one crosses finish line, how far behind is the second one.
The smallness of the critical angle ?c for diamond means that light is easily "trapped" within a diamond and eventually emerges from the many cut faces. What is the critical angle for total internal reflection
air flows from a reservoir 2 0 0 1 40 p mn m t c acircdeg through a laval nozzle with a throat diameter of 0.1 m
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