A swimmer finds it easier to swim in seawater than in a river because the density of seawater is higher than that of ordinary water. The higher density provides more buoyant force, which helps the swimmer to float and swim ...
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The density of water is maximum at 4 °C. At this temperature, water molecules are packed closely together due to hydrogen bonding, resulting in the highest density. Both higher and lower temperatures cause the density of water to decrease.
When a solid body is immersed in water, its weight decreases. This loss is equal to the weight of displaced water. According to Archimedes’ principle, the buoyant force acting on the body is equal to the weight of the displaced ...
An iron nail floats in mercury, whereas it sinks in water because the density of iron is more than that of water and less than that of mercury. Iron’s density is between that of water and mercury, allowing it to ...
When a ship sailing in a river reaches the sea, the level of the ship will fall slightly. This occurs because the density of seawater is higher than river water, causing a slight decrease in buoyant force and consequently a ...