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A 122 cm length of string has a mass of 1.70 g. It is stretched with a tension of 6.60 N between fixed supports. What is the lowest resonant frequency (first harmonic, fundamental) of this string? And the frequency of the second harmonic for this string?
Two waves traveling in the same direction combine. The constituent waves have identical angular wave numbers, find the phase difference between the constituent waves
A loudspeaker of mass 22.0 {rm kg} is suspended a distance of h = 1.60 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.90 {rm m}.
A single conservative force F(x) acts on a 1.1 kg particle that moves along an x axis. What is the maximum kinetic energy of the particle
A Michelson interferometer splits a beam of light of unknown wavelength producing a bright fringe (i.e., all of the intensity) at the detector, What is the wavelength of the unknown light
A 13.0-g wad of sticky clay is hurled horizontally at a 90-g wooden block initially at rest on a horizontal surface. The clay sticks to the block. what was the speed of the clay immediately before impact
A plate carries a charge of -2.55μC, while a rod carries a charge of +2.03μC. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge.
A ball of mass 0.3 kg at the end of a rigid rod is undergoing circular motion in a circle of radius 0.5 m. Find the angular speed as a function of time
A 130-g baseball, moving along the x-axis with speed 29.0 m/s strikes a fence at a 45 degree angle and rebounds along the y-axis with unchanged speed. Give x and y components of its change in momentum.
Two cylindrical bars, each with diameter of 2.30 cm, are welded together end to end. One of the original bars is copper and is 0.350 m long
A roofer accidently drops a bundle of shingles. If it hits the ground with a speed of 86 m/s, how fast was it moving 3 seconds earlier (g=10 m/s/s)
Two blocks of ice, one four times as heavy as the other, are at rest on a frozen lake. A person pushes each block the same distance . Ignore friction and assume that an equal force is exerted on each block.Which of the following statements is true ab..
Lightning As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and a cloud at an altitude of 680m to be the other plate. Assume the surface area of the cloud to be the same as the area of a square that ..
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