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Sagot :
Compared to the frequency and wavelength of the radio signal emitted from
the antenna, the radio signal received by the astronauts has a (1) lower frequency and a shorter wavelength.
the antenna, the radio signal received by the astronauts has a (1) lower frequency and a shorter wavelength.
Answer:
3) Higher frequency and a shorter wavelength
Explanation:
The Doppler Effect occurs when the distance between the wave source and the observer is changing. As the astronauts move toward the source of the radio waves, the radio waves will reach them at a faster rate. The perceived frequency will be higher and the wavelength shorter.
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