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, i between her low e string and kira's low e string. part a rank each member on the basis of the frequency of her low e string. rank from largest to smallest. to rank items as equivalent, overlap them.