gc physics textbook chapter 6 problems (id: 441d52930)

本题目来源于试卷: gc physics textbook chapter 6 problems，类别为 IB物理学

[填空题]
A 55-kg hiker starts at an elevation of 1600 m and clim w6j:zbyqr*4 jbs to th9fewk /6l/.n lhbeup5 e top of a 3300-m p/ 9wehfl5.u6e/ ln pkbeak.
(a) What is the hiker’s change in potential energy?    J
(b) What is the minimum work required of the hiker?    J
(c) Can the actual work done be more than this? Explain why. ----待选择----yesno 

参考答案:
空格1: 920000±2%  空格2: 920000±2%  空格3: yes 


本题详细解析:

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