A mule is a cross between a donkey and a horse. Therefore, a mule will have some donkey characteristics such as large ears, a head just a bit too large for its body, a skimpie â¦ r tail, some still have the cross on their backs from the donkey, and they often have small looking feet.
Density of air. The density of air, Ï (Greek: rho) (air density), is the mass per unit volume of Earth's atmosphere, and is a useful value in aeronautics and other sciences. Air density decreases with increasing altitude, as does air pressure. It also changes with variances in temperature or humidity.
What Is The Definition Of Density? Basically, density is how compact an object is. Put another way, density is the mass of an object divided by its volume. Weâll find out about mass and volume below. How Do You Find Density? In order to find out the density of an object, you need to know two other things about the object: its volume, and its mass. You would then divide the mass of the object by its volume to find its density. Volume