because of your mass, you weigh more then the water and you sink, now the oxygenated red blood makes you float more and the air in your lungs also help you float.
salt water
No, body fat does not weigh more than water. Both body fat and water have different densities, with fat being less dense than water. This means that for the same volume, water would weigh more than fat.
it basicly depends on the quantity: if there is more water and less bricks then the water weighs more if there are more bricks than water then the bricks weigh more if the bricks and water are in equal amount, then if the water is really dense it may weigh more... it varies
They weigh the same
no
Yes, mercury is denser than water, so a given volume of mercury will weigh more than the same volume of water.
No, a rock does not weigh more in water. When submerged in water, the rock displaces an amount of water equal to its own volume, leading to a buoyant force that reduces its apparent weight. So, the rock will weigh less in water compared to in air.
It depends how much water and how much ice you hae. if you have 1 ice cube and 6 cups of water, the water will weigh more. But, if you have 10 ice cubes and 1/4 cup of water the ice will weigh more.
yes
It will weigh more because the total weight would be the sum of the person's weight and the weight of the water in the barrel.
The density of the human body is greater than that of water. This means that when you step into water, the water you displace has a weight equal to your weight. If you weigh more than the weight of the water that you displace, you will sink.