A 11.7-kg object hangs in equilibrium from a string with a total length of 5.50 m and a linear mass density of 0.00200 kg/m. The string is wrapped around two ight frictionless pulleys that are separated by a distance ofd- 2.00 m. 斗 (a) Determine the tension in the string IN (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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