May 15th, 2019, 07:43 PM  #1 
Senior Member Joined: Mar 2019 From: TTF area Posts: 106 Thanks: 1  Change units
How do you change $1.53×10^{−12}kg$ to joules/mega joules?
Last edited by skipjack; May 16th, 2019 at 06:37 AM. 
May 15th, 2019, 09:46 PM  #2 
Member Joined: Oct 2018 From: USA Posts: 88 Thanks: 61 Math Focus: Algebraic Geometry 
$E=mc^{2}$ $c=3 \times 10^{8}$ Gives Joules 
May 15th, 2019, 10:18 PM  #3 
Math Team Joined: May 2013 From: The Astral plane Posts: 2,257 Thanks: 928 Math Focus: Wibbly wobbly timeywimey stuff.  You don't. kg is a unit of mass while J is a unit of energy. They aren't the same. Now, if you want to find the energy equivalent of the mass as Greens is suggesting, then you can use $\displaystyle E = mc^2$. In that case, just put the numbers into the equation. But this isn't a unit conversion. Dan Last edited by skipjack; May 16th, 2019 at 06:38 AM. 

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