Tuesday
January 27, 2015

Homework Help: ap chem

Posted by lily on Saturday, October 13, 2007 at 3:53pm.

How do you set this problem up?

A laser emits at a wavelength 987 nm. all of its output energy is absorbed in a detector that measures a total energy of .52 joules over a period of 52 seconds. how many photons per second are being emitted by the laser?

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