# Table of Equations

**Chapter 9:** **Non- Kinetic:** **Military Avionics, EW, CW, DE, SCADA Defenses **

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Equation 9-1 U = -k(dT / dx)

Equation 9-2 dT /dt = – V dT/ dx

Equation 9-3 S = σ T4

Equation 9-4 Risk = (Threats x Vulnerabilities x Impact / Countermeasures)

Equation 9-5 Risk ~ function (Threats / Countermeasures)

Equation 9-6 J / S = ERPJ – ERPS – LJ + LS + G RJ – G R

Equation 9-7 J / S = ERPJ – ERPS – LJ + LS

Equation 9-8 P j = P t x K x (H t / H j )2 x (D j / D t )N

Equation 9-9 S / N = (P GTArσ ) / [(4π)2 R4 KTS LS ]

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**Chapter 10:When the Other Side Fights Back – Cyberwarfare, Direct Energy Weapons, Acoustics, Integrating C-UAS into Planning **

Equation 10-1 c = L x f; L = c /f = c x T; f=c /L

Equation 10-2 SPL = SPLref + 20 log (A / Aref )

Equation 10-3 SPL = SPLref – 20 log (d / dref )

Equation 10-4 PL = 10 log P / Po

Equation 10-5 IL = 10 log I / Io

Equation 10-6 SPL = 10 log p2 / po2

Equation 10-7 SPL = 20 log p / po.

Equation 10-8 Fo = 1 / 2L x √T /M