The diode laser keychain you use to entertain your cat has
The diode laser keychain you use to entertain your cat has a wavelength of 646 . If the laser emits 4.90×1017 photons during a 30.0 feline play session, what is its average power output? Express your answer with the appropriate units.
P=
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the diode laser keychain you use to entertain your cat has a wavelength of 646 if the laser emits 490times1017 photons
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