In the arrangement shown in Figure P14.40, an object of mass, m = 2.0 kg, hangs from a cord around a light pulley. The length of the cord between point P and the pulley is L = 2.0 m. Vibrator e W Pulley Figure P14.40 (a) When the vibrator is set to a frequency of 145 Hz, a standing wave with six loops is formed. What must be the linear mass density of the cord? kg/m (b) How many loops (if any) will result if m is changed to 2.88 kg? loops (c) How many loops (if any) will result if m is changed to 72.0 kg? loops

In the arrangement shown in Figure P14.40, an object of mass, m = 2.0 kg, hangs from a cord around a light pulley. The length of the cord between point P and the pulley is L = 2.0 m. Vibrator e W Pulley Figure P14.40 (a) When the vibrator is set to a frequency of 145 Hz, a standing wave with six loops is formed. What must be the linear mass density of the cord? kg/m (b) How many loops (if any) will result if m is changed to 2.88 kg? loops (c) How many loops (if any) will result if m is changed to 72.0 kg? loops