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Derive the standing wave equation for waves trapped on a string. Use it to find the equations for the position of the nodes and the antinodes along the length of the string as a function of wavelength.
a point charge of 3.00 microc is located on the x-axis at x 3.50 m next to a spherical surface of radius 2.50 m
a bullet is fired vertically upward and reaches a height of 2150m. what is its initial velocity and how long does it
A current in magnetic filed experience a force. Therefore it should be possible to pump conducting liquids by sending a current through the liquid, what advantage would such a pump have
A point charge q1 = -2.3 x 10^ -6 C is located at the origin of a co-ordinate system. Another point charge q2 = 6.3 x 10^-6 C is located along the x-axis at a distance x2 = 6.1 cm from q1. 1) What is F12,x, the value of the x-component of the forc..
A playground merry-go-round spins with negligible friction. A child moves from the center out to the rim of the merry-go-round platform. In this merry-go-round and child system, which of these quantities change:
Unpolarized light passes through two Polaroid sheets. The transmission axis of the analyzer builds an angle of 45.8° with the axis of the polarizer. What fraction of the original unpolarized light is transmitted through the analyzer?
a rope is used to pull a 4.85 kg block at constant speed 5.02 m along a horizontal floor. the force on the block from
While walking across a carpet, you acquire an excess "static electricity" charge Q and produce a 0.5-cm spark when reaching out to touch a metallic doorknob. The dielectric strength of air is 30 kV/cm. Use this information to estimate Q(in oC).
a 280 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. the ramp is inclined
A car moving at 15 m/s skids to a stop in 20 m. If the cartravels at 45m/s , how far will skid, assuming the same constantbraking force? Calculate the kinetic energy of the earth as it makes onrevolution around the sun.
A tungsten target is struck by electrons that have been accelerated from rest through a 67.8-kV potential difference. Find the shortest wavelength of the radiation emitted
Two cylindrical rods are identical, except that one has a thermal conductivity k1 and the other has a thermal conductivity k2. As the drawing shows.
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