Kemzz21221 Kemzz21221

27-04-2021
Physics

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A typical electromagnetic signal from a communications satellite might have an intensity of 0.600 pW/m2 at the surface of the Earth. Your satellite dish collects the energy of the electromagnetic signal from the satellite; then your dish passes that energy to its central receiver, where the signal can be processed by a circuit. The area of a satellite dish can be calculated from pi (3.1416) times the radius squared. If your satellite dish has a radius of 0.28 m, and if it is receiving the signal described above, how much electromagnetic energy is reflected to the central receiver in 2.5 minutes

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29-04-2021

Answer:

The answer is "22.05 pJ"

Explanation:

Using formula:

[tex]Energy=power\times time\\\\Power=Intensity \times area[/tex]

Calculating Energy:

[tex]=0.147 \times 2.5 \times 60 \times 10^{-12}\\\\=22.05\ pJ[/tex]

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