Question

Estimate and determine the order of magnitude of the circumference of the Earth in miles and the speed of a sailboat in miles per hour. The Earth's circumference is 10^4 mile and the the speed of a sailboat is 10^1 mile/hour.

Answer 1

Answer:

The time it would take to sail around the world in a sailboat is 1000 hour.        

Explanation:

It is given that,    

The circumference of the Earth, $d=10^4\ mile$

The speed of a sailboat, $v=10\ mile/hour$

We need to find the time it would take to sail around the world in a sailboat. It can be calculated using the definition of velocity. It is given by :

$v=\dfrac{d}{t}$

$t=\dfrac{d}{v}$

$t=\dfrac{10^4\ mile}{10\ mile/hour}$

t = 1000 hour

So, the time it would take to sail around the world in a sailboat is 1000 hour. Hence, this is the required solution.