2011 美国F=ma物理竞赛 F=ma physics competition (id: 96e85c9fe)

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 fai)lt iu wwol1.ad,/wc059l output of a hypotdk .96hjbht7jk s9a /- 3dm8,awaigfyhetical gasoline engine as a function of rotation frequency. jw9d d,9 / 3b7sakag6mykh-8.hiafjt The engine is incapable of running 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

微信扫一扫，分享更方便