Question

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Answer 1

Answer:

a) The value of $n$ is 81.30.

b) The value of $n$ is 81.

Step-by-step explanation:

a) The value of $n$ is the ratio of the mass of the Earth to the mass of the Moon. That is:

$n = \frac{5.972\times 10^{24}\,kg}{7.346\times 10^{22}\,kg}$

$n = 81.30$

The value of $n$ is 81.30.

b) If $n$ is a integer, then the result must have only two significant figures. Given the result, we must approximate to the closest integer. That is:

$n = 81$

The value of $n$ is 81.