jacobever6752
30.03.2020 •
Biology
What evidence is there that Earth rotates on its axis much faster than it revolves around the sun? Choose the two correct answers. A. The length of a shadow is shortest around noon. B. The constellations are very nearly the same from one night to the next. C. The distance to travel around the sun is very long. D. The sun rises and sets every day. E. The sun follows very nearly the same path across the sky from one day to the next.
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Ответ:
A and c
The length of a shadow is shortest around noon
The distance to travel around the sun is very long
Ответ:
Efficiency
Explanation:
Efficiency refers to the percentage of energy that is used to perform any work. The higher the efficiency of a fuel, the higher is percentage of energy used to do work. In other words, the efficiency of a fuel can be increased by increasing the amount of energy involved in any function. This would reduce the loss of energy and heat leading to more efficient fuels.