Question:
An astronaut is approaching the moon He sends out a radio
Last updated: 6/24/2023
![An astronaut is approaching the moon He sends out a radio](https://media.kunduz.com/media/sug-question-candidate/20210812050307126809-3491464.jpg?h=512)
An astronaut is approaching the moon He sends out a radio signal of frequency 5 x 10 Hz and finds out that the freque shift in echo received is 10 Hz Find his speed in m s of approach ptions