One of the fundamental laws of the universe is that energy is neither created nor destroyed — it only changes forms. Consequently, many formulas for energy exist. In order to understand how these formulas are expressions of the same thing, it's important to first understand what physicists mea...
In the formula E = mc², what does 'E' represent? A. electricity B. energy C. electron D. efficiency 相关知识点: 试题来源: 解析 B。解析:在公式 E = mc²中,E 代表 energy(能量)。A 选项 electricity 是电;C 选项 electron 是电子;D 选项 efficiency 是效率。反馈 收藏 ...
What does “m” represent? A. kinetic energy B. velocity C. mass D. acceleration 相关知识点: 试题来源: 解析 C。本题考查物理公式中符号的含义。在公式 KE = 1/2mv²中,m 代表质量(mass)。A 选项 kinetic energy 是动能;B 选项 velocity 是速度;D 选项 acceleration 是加速度。
A. Energy B. Mass C. Speed of light D. Force 相关知识点: 试题来源: 解析 A。本题考查对著名物理公式 E = mc²的理解。在这个公式中,“E”代表能量(Energy),“m”代表质量,“c”代表光速。选项 B 质量用“m”表示;选项 C 光速用“c”表示;选项 D 力通常用“F”表示。反馈...
741.He made numerous contributions to the world, the most well-known being the general theory of relativity and the famous formula E=mc2. 他为世界作出了无数的贡献,最为出名的当数广义相对论和著名的方程式E=mc2。 742....
百度试题 结果1 题目What is the formula for calculating the kinetic energy of an object? A. KE = 1/2 mv^2 B. KE = 1/2 mv C. KE = mv^2 D. KE = mv 相关知识点: 试题来源: 解析 A 反馈 收藏
What is the internal energy for a real gas? What is free energy? What is the general formula for energy? What is the evidence that light is energy? What is the energy of motion called? Does all energy return to the source? You often hear it said that most of our energy ultimately co...
What is the SI unit for reactance? What is the unit of weight in CGS system? What does "deci-" mean in math? What is the formula for 2,2-dimethylbutanol? What is the unit of heat energy? How are SI units used in the US?
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Learn about energy and discover the different types of energy. Explore potential energy, kinetic energy, and how energy is simply the ability to do...