What tension is needed to tune string properly
The lowest note on a grand piano has a frequency of 27.5Hz . The entire string is 2.00m long and has a mass of 400g . The vibrating section of the string is 1.90m long. What tension is needed to tune this string properly?
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Determine whether there are "electronic privacy laws" that can prevent others from having access to "private information" as well as how effective they are.
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A 21.0-kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 80.5 N and is directed at an angle of 30.0° above the horizontal. Determine the coefficient of kinetic friction.
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