I keep getting confused on which formula to use where.(adsbygoogle = window.adsbygoogle || []).push({});

q = mc(delta)t

(delta)H = n(delta)Hx

n(delta)H = mc(delta)t

I don't know which ones to use, I keep using the wrong formula..

How do I know the difference?

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# Confused on which formula to use where

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