Because of the pressure that is on the the hot iron the cold iron doesn't have as much force as the hot one so that's why!
Speaking from a weight standpoint a pound of feathers weighs the same as a pound of iron. They each weigh 1 pound. However it take many more feathers to weight a pound then chunks (ingots) of iron.
The rust that forms on the nail is actually iron oxide, which has a greater molecular weight than iron. This additional weight from the rust causes the rusty nail to weigh more than the original nail.
Iron wool gains mass when it is burnt because the oxygen in the fire oxidizes and rusts the iron. The additional oxygen molecules on the iron wool in the form of rust increases the mass of the wool.
Rust is iron oxide, which is made up of iron and oxygen atoms. When iron reacts with oxygen to form rust, it increases in weight because it has gained oxygen atoms. This increase in weight is why rust weighs more than the original powdered iron.
They are the same. If you're asking about density, though, (how much matter is packed into a certain volume), you can test this by first dropping a pound of iron on your foot, followed by the feathers. An ounce of gold, however, does *not* weigh the same as an ounce of lead. Some research will show why....
Burnt iron (iron oxide) will weigh more than unburnt iron because the process of burning involves combining iron with oxygen from the air to form iron oxide. The additional weight comes from the oxygen atoms that have bonded with the iron atoms during the burning process.
The right question should be: Does one mole of iron weigh the same as one mole of iron oxide? The answer is NO, Iron Oxide weighs more.
They weigh the same, as they both weigh 1 kilogram.
Because iron is much more dense.
No. They weigh progresively less as the fuel/wax is burnt off and converted into gases. The flame hovers OVER the candle and does not weigh on the candle at all.
A brick made of lead would weigh more than a brick made of iron of the same size. This is because lead is denser than iron, meaning it has more mass packed into a similar volume.
Apart from the fact you would be burnt to a cinder as Sirius is 10,000 K. Gravitationally you would weigh about 60 times more than you do on Earth - which would be enough to kill you.
I believe the mass is greater as rust is the combination of iron plus oxygen, similarly the smoke and ash from a fire, if collected, would weigh more than the fuel alone before it was burnt. strange but true. Ask a chemistry boffin to prove the maths.
Speaking from a weight standpoint a pound of feathers weighs the same as a pound of iron. They each weigh 1 pound. However it take many more feathers to weight a pound then chunks (ingots) of iron.
Neither. They both weigh 1 pound.
They both weigh the same = 1KgThe answer is there in your question
If they are both a kilogram, then they both weigh the same.