Ask Question
26 July, 22:24

A mechanical high-speed bat is flying along a path perpendicular to a wall. it emits a sound with a frequency f0. the night is clear and the air is still. let the speed of sound waves in the still air be vs. the bat hears a sound wave reflected from the wall with a frequency fnew. from this information one can determine the speed vbat at which the bat is flying. install a detector at the wall. 0 bat f v what is the detected frequency? 1. f1 = vs + vbat vs f0 2. f1 = vs vs - vbat f0 3. f1 = vs vs + vbat f0 4. f1 = vs + vbat vs - vbat f0 5. f1 = 2 vs vs - vbat f0 6. f1 = vs - vbat vs f0 7. f1 = vs - vbat vs + vbat f0 8. f1 = f0 9. f1 = 2 vs vs + vbat f0

+1
Answers (1)
  1. 26 July, 22:34
    0
    1. f1 = Vs + Vbat Vs fO

    2. f1 = Vs Vs - Vbat fO

    3. f1 = Vs Vs + Vbat fO

    4. f1 = Vs + Vbat Vs - Vbat fO

    5. f1 = 2Vs Vs - Vbat fO

    6. f1 = Vs - Vbat Vs fO

    7. f1 = Vs - Vbat Vs + Vbat fO

    8. f1 = fO

    9. f1 = 2Vs Vs + Vbat fO

    The observed frequency is

    f = (V+Vr) * fO / (V + Vs)

    The speed of the sound is V = Vs

    The speed of the receiver is Vr = O

    The speed of the source

    Vs = - Vbat where negative is the bat which is approaching the wall

    Then the correct answer is

    f1 = (Vs / (Vs - Vbat)) * fO.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A mechanical high-speed bat is flying along a path perpendicular to a wall. it emits a sound with a frequency f0. the night is clear and ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers