A kilogram is smaller than a pound. A length unit in the metric system is the liter. The liter is a volume unit. The number 54.07 grams has two significant figures. 0.0001 has five significant figures.
Exact numbers have an infinite number of significant figures.
There are 60 seconds in a minute, so in 4 minutes there are 2400 seconds. Metals have large specific heats, that is why they conduct heat well. 19.Density is a property that depends on the size of an object. It is independent of amount. Specific gravity has no units.