6. [-/1.32 Points] DETAILS SERCP11 7.3.P.009. 0/20 Submissions Used MY NOTES ASK YOUR TEACHER The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.50 m and 1.05 m, respectively. The respective rotational speeds are 442 rev/min and 4,130 rev/min. Calculate the speeds of the tips of both rotors. main rotor m/s tail rotor m/s Compare these speeds with the speed of sound, 343 m/s. main rotor = sound V tail rotor sound Need Help? Read It