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A guitar of bridge length L = 0.76m has new strings put on it. The low E string has a linear density of p = 0.08 kg/m and when tuned properly should produce a tone of v = 82.41 Hz. What is the proper tension the string should be under in N?
The work completed by friction on the rock when it moves from point to point at the bottom of the bowl has magnitude 0.22. Just as the rock reaches point, what is the normal force on it because of the bottom of the bowl .
Four identical masses of 2.1kg each are located at the corners of a square with 2.0m sides. What is the net force on any one of the masses
A boy flies a kite with the string at a 30 degree angle to the horizontal. The tension in the string is 4.5N. How much work does the string do on the boy
two particles of masses m1 93000 kg and m2 4200 kg are initially at rest an a distance 148.1 km apart. the masses are
Write an assay about tomothynosis and its potential use in clinical mammography
The electrons in a metal that produce electric currents behave approximately as molecules of an ideal gas. The mass of an electron is me = 9.109x10-31 kg. If the temperature of metal is 311 K, what is the root-mean-square speed of the electrons.
A hot-air balloon is rising straight up with a speed of 1.82 m/s, How much time elapses before the ballast bag hits the ground
A roller coaster is riding along the rails at an amusement park. Explain why the normal force the track exerts on the coaster does zero work on it
A 0.015 kg lead bullet is tested by firing it into a fixed block of wood with a mass of 1.08 kg. Estimate the entering speed of the bullet
Calculate the true mass (that it would have in the absence of air) of a piece of aluminum whose apparent mass is 2.0000 kg
An elevator weighing 2500 N ascends at a constant speed of 8.0 m/s. How much power must the motor supply to do this?
A sphere of mass 2.8 kg is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes an angle of 40° with vertical when at rest.
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