Problem 10. An alien civilization occupies a planet in a distant solar system. The planet is positioned so that the earth is either moving directly toward the planet, or directly away from the planet, as the earth orbits the sun. The aliens would like to eavesdrop on our cell phone conversations which use approximately 900 MHz signals. 18. Find the difference between the highest and lowest frequencies they receive (in units of kHz) due to the Earth's orbital motion around the Sun. The orbital speed of the Earth is approximately 2.98 x 10¹ m/s. (A) 231 (B) 448 (C) 397 (D) 179 (E) 483
Problem 10. An alien civilization occupies a planet in a distant solar system. The planet is positioned so that the earth is either moving directly toward the planet, or directly away from the planet, as the earth orbits the sun. The aliens would like to eavesdrop on our cell phone conversations which use approximately 900 MHz signals. 18. Find the difference between the highest and lowest frequencies they receive (in units of kHz) due to the Earth's orbital motion around the Sun. The orbital speed of the Earth is approximately 2.98 x 10¹ m/s. (A) 231 (B) 448 (C) 397 (D) 179 (E) 483
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Transcribed Image Text:Problem 10. An alien civilization occupies a planet in a distant solar system. The planet is positioned so
that the earth is either moving directly toward the planet, or directly away from the planet, as the earth
orbits the sun. The aliens would like to eavesdrop on our cell phone conversations which use
approximately 900 MHz signals.
18. Find the difference between the highest and lowest frequencies they receive (in units of kHz) due to
the Earth's orbital motion around the Sun. The orbital speed of the Earth is approximately 2.98 x 10¹
m/s.
(A) 231
(B) 448
(C) 397
(D) 179
(E) 483
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