1. A string vibrates at its natural frequency of 300 Hz. (a) Calculate the new natural frequency when the tension is increased by 5% without
altering the length.
(b) A second string has the same tension as the original string but twice the mass
per unit length. Calculate the natural frequency of the second string.​

Aproduction line at v. j. sugumaran's machine shop has three stations. the first station can process a unit in 7 minutes. the second station has two identical machines, each of which can process a unit in 16 minutes (each unit only needs to be processed on one of the two machines). the third station can process a unit in 10 minutes. ▼ is the bottleneck station, with a bottleneck time of nothing minutes per unit (enter your response as a whole number).