October 22nd, 2016, 07:35 AM  #1 
Member Joined: Sep 2016 From: zambia Posts: 31 Thanks: 0  Units and Dimensions
Approximately how many raindrops fall on a 1acre plot during a 1in rainfall?

October 22nd, 2016, 10:09 AM  #2 
Math Team Joined: Jul 2011 From: Texas Posts: 3,002 Thanks: 1588 
(1 acre of area in square inches)(1 inch) = volume of rain in cubic inches (volume of rain in cubic inches)/(average volume of a single raindrop in cubic inches) = number of raindrops Looks like you need to research square inches in an acre & average volume of a raindrop ... 
October 25th, 2016, 09:11 PM  #3 
Member Joined: Oct 2016 From: labenon Posts: 33 Thanks: 4 
I am not an expert. I hope this will help you. If there is any correction then please inform me, but according to my logic this is the answer of your really amazing question. There are 90,921 drops of water in one gallon, so multiplying all together. Roughly 1,580,088,782,700 drops of water will fall. Or about 1 1/2 trillion drops. 
October 26th, 2016, 07:12 AM  #4 
Math Team Joined: May 2013 From: The Astral plane Posts: 2,257 Thanks: 928 Math Focus: Wibbly wobbly timeywimey stuff.  
October 26th, 2016, 08:34 AM  #5 
Math Team Joined: Dec 2013 From: Colombia Posts: 7,675 Thanks: 2654 Math Focus: Mainly analysis and algebra 
On the basis that raindrops observably come in differing sizes, I absolutely guarantee that the number is not correct  although it may be approximately correct. I would stick to 91,000 or 90,000 as an approximation in that case.

November 13th, 2016, 09:43 PM  #6 
Global Moderator Joined: Dec 2006 Posts: 20,931 Thanks: 2205 
A Google search suggests that there are about 90921 drops of oil in a gallon of oil, which would make the figure far too high for drops of water.


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