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...
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 ...
An object in motion possesses its energy of movement, which is equivalent to the work that would be required to bring it to rest. This is called its kinetic energy, and it is dependent on the square of the object's velocity (v) as well as one half of its mass (m). An object at ...
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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。
According to the potential energy definition, it is the energy that is stored in an object. Know what is potential energy, potential energy definition, its types and examples at BYJU’S - The Learning App.
The formula for the attrition rate is: Attrition rate = number of departures/average number of employees1x 100 Say that 25 employees left ABC Company last year. In addition, the company had an average of 250 employees for the year ((200 + 300)/2). ...
How is mAh on batteries different from Wh? mAh on batteries measures the capacity, indicating how much current it can supply over time. Wh (watt-hours) measures the total energy stored, factoring both capacity and voltage. The two are related by the formula: Wh = (mAh × V) / 1000. ...
When interest rates rise, mortgage rates rise as well, putting a damper on the real estate market. In fact, since the beginning of 2022, the Real Estate Select Sector SPDR Fund (ticker:XLRE) is one of the worst-performing sectorexchange-traded funds, or ETFs, in the stock market...