**Answer:**

One well-known application of density is determining whether or not an object will float on water. If the object's density is less than the density of water, it will float; if its density is less than that of water, it will sink. ... In fact, submarines dive below the surface of the water by emptying their ballast tanks.

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Answer: Inversly to the square of distance between them.

Explanation:

The density of the substance is the ratio of its mass over the space it occupies. In mathematical equation, this can be expressed as,

ρ = m / v

where ρ is density, m is mass, and v is volume.

Substituting the known values from the given,

ρ = (45 g) / (8 cm³)

ρ = 5.625 g/cm³

**<em>ANSWER: 5.625 g/cm³</em>**

Answer:

a. X = -Xo

b. Remains same

Explanation:

We can say an Equilibrium Position is a condition in which all acting influences are canceled by others, resulting in a stable, balanced, or unchanging system

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