gc physics textbook chapter 6 problems (id: 70bcb04fe)

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 65-kg hiker climbs p4q( e l:x8rzytu9tbb l,x (x8m pu6lh7(,jhkfo the top of a 3700-m-high mountain. The climb is made in 5.0 h startin u8xk u,6(7(h l,pbbxlft hj9mg at an elevation of 2300 m. Calculate
(a) the work done by the hiker against gravity,   
(b) the average power output in watts and in horsepower,   W    hp
(c) assuming the body is 15% efficient, what rate of energy input was required.    hp

参考答案:
空格1: 890000±2%  空格2: 50±2%  空格3: 0.066±2%  空格4: 0.44±2% 


本题详细解析:

微信扫一扫，分享更方便