90 71 6 18 4 3 A string 2 0 m long and fixed at its ends is

Last updated: 6/8/2023

90 71 6 18 4 3 A string 2 0 m long and fixed at its ends is driven by a 240 Hz vibrator The string vibrates in i third harmonic mode The speed of the wave and its fundamental frequency is 1 320 m s 120 Hz 2 320 m s 80 Hz 3 180 ms 80 Hz 4 180 m s 120 Hz Key 2