Can you help me fill in the blank _______ waves are used to penetrate solids and are used in doctors offices and as airports

asked Nov 15, 2015 23.9k views

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Can you help me fill in the blank

_______ waves are used to penetrate solids and are used in doctors offices and as airports

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X-rays. This exact question is answered on answers.com

Valar answered Nov 20, 2015

by Valar

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