Question

An all female guitar septet is getting ready to go on stage. The lead guitarist, Kira, who is always in tune, plucks her low E string and the other six members, sequentially, do the same. Each member records the initial beat frequency fbeat between her low E string and Kira’s low E string. In addition to recording the initial beat frequency, each member also records the change in the beat frequency fbeat (increase or decrease) when they increase the tension in their low E string.

• Aiko: 2 Hz, fbeat decreases
• Buffy: 1 Hz, fbeat decreases
• Chandra: 3 Hz, fbeat decreases
• Diane: 2 Hz, fbeat increases
• Evita: 4 Hz, fbeat decreases
• Freja: 5 Hz, fbeat decreases

Rank the 6 members above based upon the frequency of their low E string. Use the letter A to denote Aiko, B to denote Buffy, etc., do not use their names. Enter your answer below using “>” to denote that a particular singer has a greater frequency. Use “=” if two singers are tied. For example, if A, B, and C were tied for the greatest frequency, then D and E, then F, you would enter A = B = C > D = E > F in the answer box.

Rank after increase =

Answer 1