RT Book, Section A1 Starkey, Chad SR Print(0) ID 1163446408 T1 Physical Properties Governing Therapeutic Modalities T2 Therapeutic Modalities, 4e YR 2013 FD 2013 PB F. A. Davis Company PP New York, NY SN 9780803625938 LK fadavisat.mhmedical.com/content.aspx?aid=1163446408 RD 2024/03/29 AB The laws of physics govern the energies used by therapeutic modalities. This appendix presents an overview of these physical properties. Modality-specific physical properties are discussed in the relevant chapters of this text.