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tme_tme · Jan 27, 2009, 11:24 PM

70,000,000,000 newton's

Rewrite in prefix notation.

Is the answer this 70n (nano) N (newtons)?

ebaines · Jan 28, 2009, 09:06 AM

Originally Posted by tme_tme

is the answer this 70n (nano) N (newtons)?

No - "nano" means 1 billionth. That is, $10^{-9}$ . You want the notation for billion: $10 ^{+9}$ . Here's a list of prefixes that will help you:

SI prefix - Wikipedia, the free encyclopedia

Capuchin · Jan 28, 2009, 09:47 AM

I suppose this is actually quite tricky when you first come to learn it. One way of remembering is that "small" prefixes often have -i or -o on the end, and big prefixes are normally -a, the only exception being kilo- (and hecto- but that is rarely used).

Hopefully that will help you get it round the right way :)