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[tex] E = \int P(\tau) d\tau = \int A\delta(\tau) d\tau [/tex]

E is in Joules and [tex]P(\tau)[/tex] is in Watts, what are the units of A? What about [tex]\delta[/tex]?

I have a hunch, but need to have all doubts removed.

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# Dirac's delta and units

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