The law of conservation of energy states that energy cannot be created or destroyed. What happens to energy in a closed system? A. It remains constant B. It increases C. It decreases D. It changes form 相关知识点: 试题来源: 解析 A。在封闭系统中能量守恒,保持不变。选项 B 增加不对;...
If the law of conservation of energy ___ true, our universe would be very different. A. weren't B. isn't C. wasn't D. hasn't been 相关知识点: 试题来源: 解析 A。本题考查虚拟语气,与现在事实相反,从句用一般过去时,be 动词用 were,这里是虚拟语气,表示假设。反馈...
4) law of conservation of energy 能量守恒定律 1. Then we prove it according to the law of conservation of energy. 根据实际需求归纳了一种宽带的、无损耗的理想合路器模型,然后从能量守恒定律出发,证明了这种理想合路器是不可实现的。 2. A flexible threshing roller with action softness and less...
1. The law of conservation of energy 能量守恒定律 2. Energy cannot be created or destroyed, only transformed 能量不能被创造或摧毁,只能被转换 3. The total amount of energy in a system remains constant 系统中的能量总量保持不变 4. Energy is never lost, only transferred from one form to anot...
a我有没有机会解释发生了什么事 Do I have the opportunity to explain has had any matter [translate] athe law of conservation of energy 能量守恒定律 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语翻译 葡萄牙语翻译 意大利语翻译 荷兰语翻译 瑞典语翻译 希腊语...
...学或物理过程中,既不能创造,亦不会毁灭,此即谓热能不灭定律(The Law of Conservation of Energy)。 ap6.pccu.edu.tw|基于3个网页 3. 能量守衡定律 ...(work done) 导致物体上的能量改变. 由能量守衡定律(the Law of Conservation of Energy), 一物的能量减少必等於另一物的能 … ...
A. Energy can be created or destroyed. B. Energy can only be transformed from one form to another. C. Energy transformation is not always efficient. D. All forms of E. nergy have the same quality. 相关知识点: 试题来源: 解析 B。本题考查能量守恒定律的理解。能量守恒定律指出能量只能从一...
(In fact, that there is no perpetual motion at all is a general statement of the law of conservation of energy.) We must be careful to define perpetual motion. First, let us do it for weight-lifting machines. If, when we have lifted and lowered a lot of weights and restored the ...
The conservation of energyMayerJouleHelmholtzEarlier it has been supposed that the law of conservation of energy in chemical reactions has the following form: DU=DQ-PDV+SUM(muiDN) In the present paper it has been proved by means of the theory of ordinary differential equations that in the ...
The formula was first found by Einstein; it is E = mc2 . It is obvious from our discussion that the law of conservation of energy is enormously useful in making analyses, as we have illustrated in a few examples without knowing all the formulas. If we had all the formulas for all ...