gc textbook chapter 8 Rotational Motion (id: f1a5b03e2)

admin

本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified

[问答题]
A 21-speed bicycle hg5d9yri 9a.uwky /fp;as seven sprockets at the rear wautj*w;f/ rxpnxn dh8z ,5b54heel and three at the pedal cranks. In which gear is it haun 8/bxhwtdpaz5rx,f* 4 ;j n5rder to pedal, a small rear sprocket or a large rear sprocket? Why? In which gear is it harder to pedal, a small front sprocket or a large front sprocket? Why?

参考答案:



本题详细解析: 暂无