That would depend on the buoyancy of the feathers.
The "kilogram" is a unit of mass. Every kilogram has the same mass, no matterof what substance.The question is much like asking: "Which is longer, a mile in a car or a mile on a bicycle ?"
One Kilogram
1 kilogram
Sand is denser than feathers. Since a given volume of a denser material has more mass than the same volume of a less dense material, when you make the masses the same, the volumes must vary.
336.56 kg
Yes
The "kilogram" is a unit of mass. Every kilogram has the same mass, no matterof what substance.The question is much like asking: "Which is longer, a mile in a car or a mile on a bicycle ?"
They weigh the same
One kilogram of brick weighs as much as one kilogram of feathers. (I do not know what a "chesse of feathers" is...)
It takes alot more feathers to equal a kilogram than it does bricks
I litre of water weighs one kilogram on year and would weigh 0.1 kilograms.
One Kilogram
the densities are different
1 kilogram
A kilogram
Sand is denser than feathers. Since a given volume of a denser material has more mass than the same volume of a less dense material, when you make the masses the same, the volumes must vary.
not much about the same as 20 feathers