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Sometimes, when a wind blows across a long wire, a low-frequency "moaning" sound is produced. This sound arises because a standing wave is set up on the wire. Assume that a wire of linear density = 0.157 kg/m sustains a tension of 340 N as it is being stretched between two poles that are 18.4 m apart. Assume also that one end of the wire is fixed to one pole, while the other is connected to a ring which is free to slide on the other pole (mostly without friction).
What is the lowest resonance frequency produced by the wire?What is the next lowest resonant frequency?Assuming that the lowest frequency that the human ear can hear is 20 Hz, what is the lowest harmonic number n that could be responsible for the "moaning" sound?
A 1g plastic pellet is accelerated by an electirc field of 1000V/m over a gap of 12 cm, What is the velocity of the pellet after crossing the gap
In a nuclear experiment a proton with kinetic energy 3.0 MeV moves in a circular path in a uniform magnetic field. Find what energy must the following two particles have
A meteoroid is speeding throughout the atmosphere, travelling east at 16.80 km/s while descending at 13.60 km/s. What is its speed in km/s.
estimate the electrical energy stored in the atmosphere if the earths electric field extends upward for 1700 m. and
A wheel is rotating about an axis that is in the z-direction. The angular velocity is at , increases linearly with time and is at . We have taken counterclockwise rotation to be positive.
A spacecraft flies towards the Earth at a speed of 0.8c and shines a laser at an observer on Earth. At what speed would the laser light be moving
A marathon runner completes a 42.188-km course in 2 h, 25 min, and 33 s. Calculate the percent uncertainty in the distance
Consider two widely separated conducting spheres, 1 and 2, the second having twice the diameter of the first, What is the ratio of the final surface charge density of sphere 1 to that of sphere 2
You select a rental package that includes a car with an average consumption of 6rm liters of fuel per 100 rm km. Considering that in Europe average fuel cost is 1.063 rm euros/ liter, how much (in US dollars) will you spend in fuel in your trip.
A proton is initially at rest at a point where the potential is 507V. Sometime later the proton is at a point where the potential is 187V. If no force other than the electrostatic force acts on the proton, what is its final kinetic energy.
A non conducting solid sphere of radius 8.40 centimeter has a uniform volume charge density. Evaluate what is the sphere volume charge density
What is order of the layers from top to bottom
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