Need help with a physical science question

Science
Tutor: None Selected Time limit: 1 Day

Would an object 750km/h be supersonic or subsonic?

Would an object 100km/h be supersonic or subsonic?

A paramedic does not experience the Doppler Effect of the siren. Why?

Nov 6th, 2015

Thank you for the opportunity to help you with your question!

Supersonic speed is a rate of travel of an object that exceeds the speed of sound (=1193 km/h)

1. subsonic

2. subsonic

3. A paramedic would not notice the Doppler effect, because the paramedic would be moving at the same speed that the sound is being changed.

If you like my answer please best me thanks

Please let me know if you need any clarification. I'm always happy to answer your questions.
Nov 6th, 2015

why does sound travel faster through water than through air?

you hear an ambulance in your neighborhood that is traveling a few blocks from where you are. The pitch of the siren seems to be getting lower and lower. Is the ambulance traveling toward you or way from you? How do you know?

Nov 6th, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
Nov 6th, 2015
...
Nov 6th, 2015
Dec 6th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer