Yahoo Answers: Answers and Comments for How to put this into Standard Form? [Physics]
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From RandomGirl
enUS
Mon, 13 May 2013 11:12:24 +0000
3
Yahoo Answers: Answers and Comments for How to put this into Standard Form? [Physics]
292
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From dittbrenner: The 'regularly happening type' for an ...
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Thu, 12 Jan 2017 14:21:06 +0000
The 'regularly happening type' for an imaginary type is i*b the position i is the imaginary unit (sqrt(a million) and b is the importance of the imaginary fee expressed as a 'commonly used' (or authentic) fee. The i is often written first to 'alert' the reader that what follows is an imaginary fee. also, in electric powered engineering, the j is often used for the imaginary unit on account that a decrease case i is used for instant modern. remember that sqrt(a*b) = sqrt(a) * sqrt(b) so....... on your problem, aspect out the a million from all the radicals and write the imaginary fee as i*(2*sqrt(40 9) + 3*sqrt(sixty 4)) and simplify it to i*(2*7 + 3*8) = i*38 Doug

From DaveWH: A couple of points first. If the wavelength is...
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Mon, 13 May 2013 11:21:44 +0000
A couple of points first. If the wavelength is given in cm YOU MUST CONVERT THEM TO METERS before using them in any formula. This is a very common mistake. Secondly, why bother putting the powers of ten into your calculator? Its not necessary. What I , and a lot of others, do is to work out the other numbers, and most of the time, the powers of ten can be worked out in your head!
Eg
(3 * 10^8 * 1.6 * 10^19) /( 2.36 * 10^20)
We have
3 * 1.6 / 2.36 * 10^8 * 10^19 / 10^20
So, plug the numbers in as normal, the powers of ten you can do in your head using the laws of indices.
10^8 * 10^19 * 10^20 = 10*8 * 10^39 = 10^31.