A satellite 575 km above the earth’s surface transmits sinusoidal electromagnetic waves of frequency 92.4 MHz uniformly in all directions, with a power of 25.0 kW. (a) What is the intensity of these waves as they reach a receiver at the surface of the earth directly below the satellite? (b) What are the amplitudes of the electric and magnetic fields at the receiver? (c) If the receiver has a totally absorbing panel measuring 15.0 cm by 40.0 cm oriented with its plane perpendicular to the direction the waves travel, what average force do these waves exert on the panel? Is this force large enough to cause significant effects?
A satellite 575 km above the earth’s surface transmits sinusoidal electromagnetic waves of frequency 92.4 MHz uniformly in all directions, with a power of 25.0 kW. (a) What is the intensity of these waves as they reach a receiver at the surface of the earth directly below the satellite? (b) What are the amplitudes of the electric and magnetic fields at the receiver? (c) If the receiver has a totally absorbing panel measuring 15.0 cm by 40.0 cm oriented with its plane perpendicular to the direction the waves travel, what average force do these waves exert on the panel? Is this force large enough to cause significant effects?
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A satellite 575 km above the earth’s surface transmits sinusoidal
directions, with a power of 25.0 kW. (a) What is the intensity of these
waves as they reach a receiver at the surface of the earth directly below
the satellite? (b) What are the amplitudes of the electric and magnetic
fields at the receiver? (c) If the receiver has a totally absorbing panel
measuring 15.0 cm by 40.0 cm oriented with its plane perpendicular to
the direction the waves travel, what average force do these waves exert
on the panel? Is this force large enough to cause significant effects?
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