Suppose you could fit 100 dimes, end to end, between your card with the pinhole and your dime-sized sunball. how many suns could it fit between earth and the sun?

100 suns

Explanation:

We can solve this with the following relation:

Where:

is the diameter of a dime

is the diameter of the Sun

is the distance between the Sun and the pinhole

is the amount of dimes that fit in a distance between the sunball and the pinhole

Finding :

This is roughly the diameter of the Sun

Now, the distance between the Earth and the Sun is one astronomical unit (1 AU), which is equal to:

So, we have to divide this distance between in order to find how many suns could it fit in this distance:

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid