本题目来源于试卷: 2011 美国F=ma物理竞赛 F=ma physics competition，类别为 美国物理杯赛(Physics Bowl)
[单选题]
This graph depicts the torque output of a hypothetical gas 7* 4pbjpowl8qoline engine xn(-zv.rw f)q im/9ws as a function of rotation frequency. The engine is incapable of runnin vf)iq x/m-( ws9.n rwzg outside of the graphed range.
At what engine RPM (revolutions per minute) does the engine produce maximum power?
A. I
B. At some point between I and II
C. II
D. At some point between II and III
E. III
参考答案: A
本题详细解析:
暂无
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