Answered

It is possible to estimate the number of grains of sand on a beach.

a. Briefly describe how you would do this.

b. Explain how this is an analogy for estimating the number of galaxies in the Universe.



Answer :

GinnyAnswer

Final answer:

To estimate the number of grains of sand on a beach, calculate the volume of one grain and multiply it by the total estimated grains. This method can be analogously applied to estimate the number of galaxies in the Universe.


Explanation:

Estimating the number of grains of sand on a beach:

  1. Calculate the volume of one grain of sand as a cube with sides 1.0 mm long.
  2. Find the total volume of sand by multiplying the volume of one grain by the estimated number of grains on the beach.
  3. To estimate the number of galaxies in the Universe, use similar principles but with astronomical data to calculate the total volume of observable galaxies and compare it to the estimated number of galaxies.

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