Question

Radius of the Earth =6.3781 x 10^6Radius of a Lacrosse Ball = 3 x 10^-2How many times greater is the radius of Earth is than the radius of a lacrosse ball. Show/Explain your answer

Answer 1

Given:

`\begin{gathered} \text{ Radius of the Earth }=6.3781*10^6 \\ \\ \text{ Radius of a Lacrosse Ball }=3*10^(-2) \end{gathered}`

Find-:

How many times greater is the radius of Earth is than the radius of a lacrosse ball

Explanation-:

Let x times grater then lacrosse ball

so,

`\begin{gathered} 6.3781*10^6=x*3*10^(-2) \\ \end{gathered}`
`\begin{gathered} x=(6.3781*10^6)/(3*10^(-2)) \\ \\ x=(6.3781*10^6*10^2)/(3) \\ \\ x=(6.3781*10^8)/(3) \\ \\ x=2.126*10^8 \end{gathered}`

So the radius of Earth is 2.16 10 to the power 8 times greater than then radius of a lacrosse ball