How much does a cubic meter of air weigh

How much does a cubic meter of air weigh

The air density is 1.293g/l, i.e. 1.293kg/m3
The mass of a cubic meter of air is 1.293kg. Its gravity is 12.6714n (G is 9.8m / S2)

How much does a cubic meter of paper weigh?
One cubic meter carton (length, width and height are all 1 meter), which is full of paper. It may not be especially full. It's just full. It's ordinary paper, not special paper. What's the total weight of such carton with paper?

That depends on the quantity of your paper. Generally, the quantity of toilet paper is 15g. Even if you calculate it, it should be about 225kg!

The volume of the boiled water discharged by the iron block, the mass of the boiled water discharged by the iron block, the gravity of the boiled water discharged by the iron block and the buoyancy of the iron block are calculated

I think the best answer is: the volume of the boiled water is equal to the volume of the iron block = 2x10-3m3, the mass of the boiled water = the density of the water * the volume of the boiled water = 1000 * 2 * 10 to the negative third power = 2kg, the gravity of the boiled water = the iron block to be drained