A 13.1-kg object hangs in equilibrium from a string with a total length of 5.60 m and a linear mass density of μ = 0.00500 kg/m. The string is wrapped around two light frictionless pulleys that are separated by a distance of d = 2.00 m. a m Too m (a) Determine the tension in the string. N (b) At what frequency must the string between the pulleys vibrate in order to form the standing-wave pattern shown in Figure b? Hz

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