Since there are 16 ounces in a pound, 50 ounces is three and an eighth pounds, which is more than 3 pounds. So the feathers weigh more.
3 pounds of apples weigh more than 50 ounces of feathers.
One kilogram of brick weighs as much as one kilogram of feathers. (I do not know what a "chesse of feathers" is...)
Concrete
1 lb of sugar weighs exactly the same as 1lb of feathers. a pound is a pound is a pound.
An ounce of Gold Weighs more. An ounce of gold weighs 2.7539537 grams more, than an ounce of feathers. Gold is weighed in Troy ounces and feathers are weighed in standard ounces. There are 31.1034768 grams in 1 Troy ounce and there are 28.3495231 grams in 1 standard ounce.
Iron weighs more than feathers. Iron is a dense, heavy metal, while feathers are light and fluffy. However, if comparing the same volume of iron and feathers, they would weigh the same due to the concept of density.
a brick
They weigh the same.
I would need more details to answer but if your asking about the common question, "What weighs more, an ounce of feathers, or an ounce of rocks?" then they are the same.
they are equal dummy
Each weighs a pound so neither weights more than the other..
Pebbles are heavier because they're rocks. Feathers are lightweight and fur.