Assuming the light from the VLC unit has a beam 0.50 cm in diameter, how much energy

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Assuming the light from the VLC unit has a beam 0.50 cm in diameter, how much energy does the light deliver in 20 seconds?
A. 0.025 J
B. 3.9 J
C. 63 J
D. 5000 J

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Physics

ISBN: 978-0321976444

5th edition

Authors: James S. Walker

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Question Posted: Aug 31, 2017 12:17 PM

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Assuming the light from the VLC unit has a beam 0.50 cm in diameter, how much energy

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A curing light from a VLC unit delivers energy to a tooth filling Use the de...View the full answer

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