D: Sóng có thể truyền qua khoảng không của không gian,
với tốc độ ánh sáng.
Power is the RATE at which energy changes or flows.
The unit of energy is the Joule, so a unit of power is the Joule/second.
That unit has the special name "<em>Watt</em>".
Your question is not necessarily a question. It's also a statement, You could write
"<em>Watt's the basic unit of the measurement of power</em>".
The specific heat of water is 4.186.
In the process of peppering the question with those forty (40 !) un-necessary quotation marks, you neglected to actually show us the illustration. So we have no information to describe the adjacent positions, and we're not able to come up with any answer to the question.
Energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.
