Question

Earth travels around the Sun at an average speed of 29.783 km/skm/s. Convert this speed to miles per hour. Express your answer using five significant figures.

Answer 1

Answer:

So average speed of the earth in miles per hour will be equal to $6.68\times 10^7miles/hr$

Explanation:

We have given average speed of the earth v = 29783 km/sec

We have to convert this speed into miles per hour

For converting the speed in miles per hour first we have to convert km to miles and sec to hour

As we know that 1 km = 0.6213 miles

And 1 sec = 0.000277 hour

So $29783km/hr=\frac{29783\times 0.6213}{0.000277}=6.68\times 10^7miles/hr$

So average speed of the earth in miles per hour will be equal to $6.68\times 10^7miles/hr$