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Two rigid rods are oriented parallel to each other and to the ground. The rods carry the equal current in the similar direction. The length of each rod is 0.80 meter, and the mass of each is 0.077 kilogram. One rod is held in place above the ground, while the other floats beneath it at a distance of 8.2 x 10-3 meter. Calculate what the current in the rods.
An 80 N box initially at rest is pulled by a horizontal rope on a horizontal table. Find the friction force on the box if the pull is 25 N and the box remains at rest
your friends mass is 65kg. if she jumps off a 110-cm high table how far does the earth move toward her as she falls? a
The maximum wavelength that an electromagnetic wave can have and still eject electrons from a metal surface is 469 nm. What is the work function W0 of this metal? Express your answer in electron volts.
A doubly charged ion is accelerated to an energy of 30.0 keV by the electric field between two parallel conducting plates separated by 1.60 cm
two long parallel wires each carry 3.0a in the same direction with their centers 2.0cm apart. a find the magnitude of
A motorist drives south at 28.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.00 min, find the total vector displacement
A piece of sandston with a bulk volume of 1.3 cc is contained ina 5-cc cell filled with helium at 760 mm Hg. Temperature ismaintained constant and the cell is opened to another evacuatedcell the same volume. The final pressure in the two vesselsis..
A fireman d = 60.0 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of ?i = 22.0° above the horizontal, at what height will the stream of water strike the building
a diver springs upward with an initial speed of 1.7 ms from a 4.0-m board.a find the velocity with which he strikes the
A block of ice of mass 0.8 kg and initial temperature T = 0 C is placed in a sealed insulated container full of Helium gas, What is the mass of the liquid water
In theclassical model of conduction, the electron loses energy on averagein a collision because it loses the drift velocity it had picked upsince the last collision. Where does this energy appear
A railroad car of mass 2.4 104 kg moving at 4.00 m/s collides and couples with two coupled railroad cars, How much kinetic energy is lost in the collision
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