Equation 17.13 states that at distance r away from apoint source with power (Power)avg
Chapter 17, Problem 73(choose chapter or problem)
Equation 17.13 states that at distance r away from apoint source with power (Power)avg, the wave intensity isI 51Power 2avg4pr 2Study Figure 17.10 and prove that at distance r straightin front of a point source with power (Power)avg movingwith constant speed vS the wave intensity isI 51Power 2avg4pr 2 av 2 vSvb
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