A 50-N block hangs from a string that passes over a light frictionless pulley. The string is connected to a vibrator of constant frequency f. A standing wave of four loops is formed on the string. If the linear mass density of the string is u = 0.08 kg/m, and its length between the vibrator and the pulley is L = 5 m, then the frequency of the vibrator is: vibrator L < pulley W = 50N O f= 100 Hz O f = 125 Hz O f = 10 Hz O f= 75 Hz O f= 25 Hz

A piano wire with mass 2.60g and length 81.0cm is stretched with a tension of 30.0N . A wave with frequency 110 Hz and amplitude 1.40 mm travels along the wire. (a)Calculate the average power carried by the wave. (b)What happens to the average power if the wave amplitude is halved?

A string has a mass attached to it as shown in the figure. The length of the entire string is 2.4 m, and its mass is 12 gram. The hanging mass attached to the string is M = 4 kg. 1/4 of the length of the string is in the hanging part (vertical) and 3/4 is parallel to the table. The string in the horizontal part is plucked, and standing waves are observed in the third harmonic. Calculate the frequency of vibrations in the string (in Hz), and what will be the speed of the wave in the string? Enter the speed in m/s as your answer in canvas. |M kg