The answer will depend on the metal.
Lithium has a density of 0.53 tonnes per cubic metre
while
osmium has a density of 22.5 tonnes per cubic metre (more than 40 times as much).
2.2 tons
Since 1 kilonewton equals 0.112 tons, 80 Kn is equal to 8.96 tons.
Of water one tonne
a cubic metere of what? it depends on the density
With dry sand. 1.602 tonnes
sand would weigh about 1.4 tons while silt will probably be about 0.8 tons
2.2 tons
2.2 tons.
2.2
About 2 tons of feathers or 300 tons of heavy metal.
Since 1 kilonewton equals 0.112 tons, 80 Kn is equal to 8.96 tons.
Of water one tonne
You cannot associate length and weight
100 TONS
average of 0.12tons of rebars per cubic meter of concrete.
it is 2400 kg
a cubic metere of what? it depends on the density