作业帮一道指数英文数学题求解
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一道指数英文数学题求解
An orchestra tunes to a frequency of 440,which sounds the A above middle C.Each octave higher doubles the frequency,and each of the 12 semitones in the octave increases the frequency in the same ratio.
(a)What is this ratio?
(b)Find the frequency of middle C.
(c)Where on the scale is a note with a frequency of 600?
An orchestra tunes to a frequency of 440,which sounds the A above middle C.Each octave higher doubles the frequency,and each of the 12 semitones in the octave increases the frequency in the same ratio.
(a)What is this ratio?
(b)Find the frequency of middle C.
(c)Where on the scale is a note with a frequency of 600?
管弦乐队的音乐,440,声音频率高于中c的每一个音阶频率更高的双打比赛,每12个半音“音阶频率的增加在相同的比例.
(a)这是什么比?
(b)中央C找到的频率.
(c)哪个位置的规模是注意与频率600吗?
(a)这是什么比?
(b)中央C找到的频率.
(c)哪个位置的规模是注意与频率600吗?