Situational Analysis. Air are often pumped inside a tire in order to keep it rolling across the road. A driver accidentally pumped low amount of air in the truck’s tire. While travelling on the road he observed that the truck become unstable. He moved down and checked the source of the problem. He found out that the tire was almost deflated due to the minimal amount of air pumped. 1. How can air pumped in the tire hold up a truck?

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Density of Solids

The density of a substance refers to how much matter is present in a given amount of space. It is expressed as the ratio of the mass of the substance to its volume.