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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 ac generator with a frequency of 1.24 kHz and an rms voltage of 24.2V is connected in series with a 2.20 kOmega resistor and a 330 mH inductor. What is the average power consumed by this circuit
A musician plays a string on a guitar that has a fundamental frequency of 330.0 Hz. The string is 65.2 cm long and has a mass of 0.268 g. At what speed do the waves travel on the string
A professor's office door is 0.89m wide, 2.0m high, and 4.0cm thick; has a mass of 25kg ; and pivots on frictionless hinges. When the door is open and at rest, the door closer exerts a torque of 4.5N?m
A grindstone of radius 4 m is initially spinning with an angular speed of 8 rad/s. The angular speed is then increased to 10 rad/s over the next 4 seconds. Imagine that the angular acceleration is constant.
Percy did 1000 joules of work and exerted a power of 2 watts. How many seconds did Percy take to do his work
A ball is kicked from the ground toward a fence that is located 25 m away. By how much does the ball clear the fence
A train has a rest length of 100 m. Traveling at a very high velocity, it goes through a tunnel of length 60 m. What is the velocity of the train expressed in units of c
A 200g hockey puck is launched up a metal ramp that is inclined at a 30° angle. What speed does the puck have when it slides back down to its starting point
Two small plastic spheres each have a mass of 2.0 {\rm g}and a charge of-50.0{\rm{ {\rm nC}}}. They are placed2.0 {\rm cm}apart. By what factoris the electric force on a sphere larger than its weight?
A snowboarder starts from rest and rides 39.47 m down a snow-covered slope that makes an angle of 33.19° with the horizontal, How far will she travel along the flat snow
A wheel is rotating freely at angular speed 920 rev/min on a shaft whose rotational inertia is negligible. What fraction of the original rotational kinetic energy is lost
A long horizontal wire carries a current of IT = 46.9 A. A second wire (I), made of 3.00 mm diameter copper wire and parallel to the first but L = 13.8 cm below it, What is the current in the lower wire
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