Frank does 2400J of work in climbing a set of stairs. If he does the work in 6 seconds, what is his power output?
1 answer:
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Answer:
The mass of air in the box is 0.78 grams.
Explanation:
A litre equals a cubic decimetre. By definition of density (), in grams per litre, we calculate the mass of air inside the cube (
), in grams:
(1)
Where is the volume occupied by air within the cube, in litres.
If we know that and
, then the mass of air is:
The mass of air in the box is 0.78 grams.