Explanation:
It s given that,
Mass of a planet,
Radius of a planet,
(1) We need to find the acceleration due to gravity for a person on the surface of the planet. Its formula is given by :
(2) The escape velocity is given by :
v = 7324.61 m/s
Hence, this is the required solution.
We will hear the sound of siren of frequency 1553.4606 Hz.
<h3>What is Doppler Effect?</h3>
The apparent change in wave frequency brought on by the movement of a wave source is known as the Doppler effect. When the wave source is coming closer and when it is moving away, the perceived frequency changes. The Doppler effect explains why we hear a passing siren's sound changing in pitch.
according to Dopplers Effect,
the frequency would be 1553.4606 Hz.
to learn more about Doppler Effect go to - brainly.com/question/9165991
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