Question

How many dry sand grains are on Earth's beaches?

Guess that the length of Earth's beaches is about twice the
Earth's circumference.

Guess that a sand grain has a radius of about 0.5 millimeter. ***
PLEASE ANSWER 6 QUESTIONS BELOW**

All numbers must be entered as, say, 5000 or 5e3 or 5.0e3 and
**not** with commas as in "5,000" and
**not** as fractions as in "3/4" and
**not>** as percentages as in
"70%".

1 **Estimate the volume of one dry sand grain (in
meter ^{3}, see Hint). ????**

2 **Estimate the width (in meters) of a typical beach.
???**

3 **Estimate the depth (in meters) of a typical
beach.**

4 **Estimate the total length (in meters) Earth's beaches
(see Description).**

5 **Estimate the volume (in meter ^{3}) of Earth's
beaches.**

6 **Estimate the number of dry sand grains on Earth's
beaches.**

Answer #1

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 6 minutes ago

asked 7 minutes ago

asked 23 minutes ago

asked 34 minutes ago

asked 34 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago