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mathelord
a metal of density x weighs y in air,when immersed in a liquid of density z,what is it's apparent weight.please i need explanations about this
Density is a measure of how much mass is contained in a certain volume of a substance. It is often expressed in units of grams per cubic centimeter (g/cm3) or kilograms per cubic meter (kg/m3).
Density is calculated by dividing the mass of an object by its volume. This means that as the mass of an object increases, but the volume stays the same, the density will also increase. Conversely, if the mass stays the same but the volume increases, the density will decrease.
Temperature can affect the density of both metal and air. As temperature increases, the particles in a substance will spread out and take up more space, resulting in a decrease in density. For metals, this means that their atoms will vibrate more and take up more space, causing a decrease in density. For air, the increased temperature causes the air molecules to spread out and take up more space, resulting in a decrease in air density.
The density of a metal is determined by its atomic structure. Metals with a higher atomic number and a higher atomic mass tend to be denser because they have more protons, neutrons, and electrons which make up their atoms. Additionally, the way the atoms are arranged in the crystal structure of a metal can also affect its density.
The density of air can impact the flight of objects in several ways. For example, denser air can provide more lift for aircraft and allow them to fly at higher altitudes. On the other hand, less dense air can cause objects to experience less resistance and travel at higher speeds. Air density can also affect the amount of drag experienced by objects, which can impact their trajectory and stability during flight.