Comments on: When You Go Scuba Diving In The Ocean, Below What Depth Could Damage To Your Eardrum Start To Occur? http://scubadivingimages.com/when-you-go-scuba-diving-in-the-ocean-below-what-depth-could-damage-to-your-eardrum-start-to-occur.html Scuba diving images, pics, photos, videos and more... Mon, 12 Sep 2011 17:45:10 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: hangfire http://scubadivingimages.com/when-you-go-scuba-diving-in-the-ocean-below-what-depth-could-damage-to-your-eardrum-start-to-occur.html/comment-page-1/#comment-432 hangfire Fri, 19 Feb 2010 09:45:26 +0000 http://scubadivingimages.com/when-you-go-scuba-diving-in-the-ocean-below-what-depth-could-damage-to-your-eardrum-start-to-occur.html#comment-432 I tried to work out the length of a column of sea-water that is 8.2mm diameter and has a weight (force = mass x acceleration due to gravity) of 1.5 newtons. The calculation came to 2.81m. That sounds about right, eh? Working: 1. volume of a cylinder = (area of circle) x (length of cylinder). 2. area of a circle = pi x radius squared 3. diameter = 2 x radius 4. 1 meter = 1000 mm (8.2mm = .0082m) 5. mass of a solid = volume x density 6. force = mass x acceleration (due to gravity) So: Force = ( volume of column x density of sea water ) x g 1.5 = (pi x .0082/2 ^ 2) x depth x 1.03 x 10^3 x 9.81 1.5 = 0.533 x depth depth = 2.81m I tried to work out the length of a column of sea-water that is 8.2mm diameter and has a weight (force = mass x acceleration due to gravity) of 1.5 newtons.
The calculation came to 2.81m. That sounds about right, eh?
Working:
1. volume of a cylinder = (area of circle) x (length of cylinder).
2. area of a circle = pi x radius squared
3. diameter = 2 x radius
4. 1 meter = 1000 mm (8.2mm = .0082m)
5. mass of a solid = volume x density
6. force = mass x acceleration (due to gravity)
So:
Force = ( volume of column x density of sea water ) x g
1.5 = (pi x .0082/2 ^ 2) x depth x 1.03 x 10^3 x 9.81
1.5 = 0.533 x depth
depth = 2.81m

]]>