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Suppose the strings on a violin are stretched with the same tension and each has the same length between its two fixed ends.The musical notes and corresponding fundamental frequencies of twoof these strings are G (196.0 Hz) and E (659.3 Hz). The lineardensity of the E string is 6.21x10-4 kg/m. What is thelinear density of the G string?
An 86kg man drops from rest on a diving board 3.0m above the surface of the water and comes to rest 0.55s after reaching water. What is the net force on the diver as he is brought to rest.
A block with mass m1 = 9.4 kg is on an incline with an angle ? = 33.0° with respect to the horizontal. For the first question there is no friction between the incline and the block. When there is no friction, the magnitude of the acceleration of t..
The rms value of the electric field in an electromagnetic wave is Erms = 480 V/m. Find the average energy density
When at rest, two trains have sirens that emit a frequency of 300Hz. The trains travel toward one another and toward an observerstationed between them. One of the trains movesat 26.0 m/s, and the observerhears a beat frequency of2.6 beatsper secon..
The tortoise can run with a speed of 0.1 m/s and the hare can run with a speed of 2 m/s. They start their race at the same time, but the hare, feeling confident, stops along the way for a two minute nap, and the tortoise wins by the length of his ..
Suppose that a structure of arbitrary complexity has a number of forces applied to it (at various points) and yet is in static equilibrium. The principle of virtual work allows one to write an equation that relates the applied forces.
The electron beam inside a television picture tube is 0.40mm in diameter and carries a current of 50uA. How many electrons strike the screen each second
On the Moon\'s surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected. What is the difference in travel time for light that travels only through space to the moon and back and light that travels through..
A 1.9x10^14 Hz electromagnetic wave propagates in carbon tetrachloride with a speed of 2.05x10^8 m/s
a catcher catches a 145 g baseball traveling horizontally at 36.0 m/s. How large an impulse does the ball give to the catcher, what average force did the ball exert on the catcher
A railroad car of mass 2.58 104 kg is moving with a speed of 3.88 m/s. It collides and couples with three other coupled railroad cars, What is the speed of the four cars after the collision
A 12.0 g bullet is fired horizontally into a 100 g woodenblock that is initially at rest on a frictionless horizontalsurface and connected to a spring having spring constant 150 N/m. what was thespeed of the bullet at impact with the block
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