A. kg m3 s-2
B. kg m2 s-2
C. kg m–3 s-2
D. kg m–1 s-2
Correct Answer:
Option D = kg m–1 s-2
The correct unit of energy density is?
![Five 80-W and three 100W are run for 8 hours. If the cost of energy is N5.00 per unit, calculate the cost of running the lamp. [1 unit = 1 kWh]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "Five 80-W and three 100W are run for 8 hours. If the cost of energy is N5.00 per unit, calculate the cost of running the lamp. [1 unit = 1 kWh]")
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