3. 2 meters per second 4. i think object 7. i’ll try to figure it out 8. .77 9. 25km 10. 10m each second
Answer:low risk for tissue damage
uses radio waves
noninvasive
tomographic imaging
no radiation
Explanation:brainliset pls
Answer:
3 Hz
Explanation:
A beat is the pattern of interference among two waves with frequencies which are different.
The difference of the frequencies of the waves gives us the beat frequency.
Here, one frequency is , the other frequency is
So, the beat frequency
The beat frequency that is produced is 3 Hz
The correct answer is B, sound waves are longitudinal with a medium