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Three successive resonance frequencies of an air column are 75, 125, and 175 Hz.
(a) Does this column have one end open and one end closed, or both ends open?
(b) What is the fundamental (lowest) frequency?
(c) Draw the wave pattern for the 75 Hz wave
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A copper strip (n = 8.47 1022 electrons per cubic centimeter) 2 cm wide and 0.07 cm thick is used to measure the magnitudes of unknown magnetic fields that are perpendicular to the strip. Find out the magnitude of B for the following Hall voltages..
How numerous forces act on the brick
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Winds pick up suddently,increasing the wave's amplitude to 6m. Explain how does this change in amplitude affect the wave's frequency and the amount of energy it transports?
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