I Review I Constants I Periodic TableA radio antenna broadcasts a 1.0 MHz radio wavewith 20 kW of power. Assume that the radiation isemitted uniformly in all directions.Part AWhat is the wave's intensity 35 km from theantenna?Express your answer in watts per metersquared.

As antenna is emitting radiation uniformly in all directions,i.e, spherically symmetric. Here s is…

Answered: What is the wave's intensity 35 km from…

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What is the wave's intensity 35 km from the antenna? Express your answer in watts per meter squared.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter34: Maxwell’s Equations And Electromagnetic Waves

Section: Chapter Questions

Problem 36PQ

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Concept explainers

Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.

Question

I Review I Constants I Periodic Table
A radio antenna broadcasts a 1.0 MHz radio wave
with 20 kW of power. Assume that the radiation is
emitted uniformly in all directions.
Part A
What is the wave's intensity 35 km from the
antenna?
Express your answer in watts per meter
squared.

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