本题目来源于试卷: Physics Unit6: Work and Energy，类别为 通用国际物理
[单选题]
A ball drops some diq(-7syuhygvcezc gy(1+ .zk- stance and gains 30 J of kinetic eneo;3,lrf;o( sx 7su kufrgy. Do not ignore air resistance. How m; x oskl3ufs 7(ro;,ufuch gravitational potential energy did the ball lose?
A. more than 30 J
B. exactly 30 J
C. less than 30 J
D. cannot be determined from the information given
参考答案: A
本题详细解析:
暂无
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