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 o0a 2op)wu zq sp*+vj e),elp+xutput of a hypotheqyl 7/vxnf/--lqgo8 ztls 3m0tical gasoline engine as a function of rotation frequency. The engine is incapable oq xz/g 0ynl8lm--l7/o stf vq3f 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