in the arrangement shown in the figure below, an object of mass m= 4.0 kg hangs from a cord around a light pulley. The length of the cord between point Pand the pulley is L = 2.0 m. (Ignore the mass of the vertical section of the cord.) (a) When the vibrator is set to a frequency of 160 Hz, a standing wave with six loops is formed. What must be the linear mass density of the cord? (b) How many loops (if any) will result if m is changed to 9.00 kg? loops (c) How many loops (if any) will result if m is changed to 14 kg? loops

in the arrangement shown in the figure below, an object of mass m= 4.0 kg hangs from a cord around a light pulley. The length of the cord between point Pand the pulley is L = 2.0 m. (Ignore the mass of the vertical section of the cord.) (a) When the vibrator is set to a frequency of 160 Hz, a standing wave with six loops is formed. What must be the linear mass density of the cord? (b) How many loops (if any) will result if m is changed to 9.00 kg? loops (c) How many loops (if any) will result if m is changed to 14 kg? loops