Efficiency = 45J/120J = 0.375
Or
0.375 * 100% = 37.5 %
Explanation:
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An elements is called a pure substance because it is composed of only one kina of atoms in a fix proportion.
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Explanation:
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I think the closest possible answer to this question is The air density increases and decreases repeatedly before returning to normal.Thank you for your question. Please don't hesitate to ask in Brainly your queries.
2 min = 120 sec
120/15 = 8
The black horse represents 8 seconds.