I would say that the work done which is the energy used to move my body was not zero and maybe when going downward it has an opposite sign but still it feels like I used more energy to go up than down. Is the work zero because of 0 displacement? energy energy-conservation work ...
When a force causes an object to move through a distance, work is done on the object. We say that the force has done work on the object. The amount of work done on the object is equal to the amount of energy transferred to it. Examples: 1. A man applies a force of 700N to a...
The meaning of WORK is to perform work or fulfill duties regularly for wages or salary. How to use work in a sentence. Synonym Discussion of Work.
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When work is done, energy is ___. A. created B. destroyed C. transferred D. unchanged 相关知识点: 试题来源: 解析 C。解析:做功时,能量被转移。选项 A,能量不能被创造。选项 B,能量不能被毁灭。选项 D,做功能量会变化。反馈 收藏
I started working in a recording studio... 我开始在一个录音棚工作。 柯林斯高阶英语词典 Fewer and fewer people are in work... 就业人数越来越少。 柯林斯高阶英语词典 I was out of work at the time... 那时我失业了。 柯林斯高阶英语词典 I can't talk to you right now—I'm working... ...
So the constructive work done by the engine is acting on tyres to cancel the frictional force and gravitational force and to move forward at a constant velocity of V. Since the truck is moving at a steady pace, there is no change in kinetic energy (ΔV=0)(ΔV=0). Hence, there is ...
百度试题 结果1 题目 The theorem of kinetic energy of a particle follows that the amount of work done is independent of the path. ()A.对B.错 相关知识点: 试题来源: 解析 B 反馈 收藏
百度试题 题目Whenever work is being done, energy ___ from one form into another. A.convertsB.C.B. convertedD.C. is convertedE.F.D. is being converted相关知识点: 试题来源: 解析 C 根据题意应用被动语句。反馈 收藏
Work and Energy功和能英文课件