A bat moving with a speed of 2.75 m/s and . emitting sound of 38.0 kHz approaches a moth at rest on a tree trunk. Part A What frequency is heard by the moth? [5] ΑΣΦ f' = Submit O How kHz Request Answer Part B If the speed of the bat is increased, is the frequency heard by the moth higher or lower?

can you please do only 3. thank you

Which observer (both are stationary) will hear a higher pitch (high frequency sound? observer A Observer A + Both Observers A & B will hear the same sound. O unable to determine Observer B observer B

4. A tug boat horn emits a frequency of 250 Hz in 18 °C air, which has a speed of sound of 342 m/s. If the tug boat is moving away from a stationary observer at 15 m/s, what is the frequency that is observed? Sobs = ? Ssource= f = f obs VIV source V±V source source 5. A jogger runs at 9 m/s, and is trailed by a bumblebee moving at 5 m/s and emitting a frequency of 270 Hz. if the speed of sound in air was 336 m/s?

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When poked by a spear, an operatic soprano lets out a 1047 Hz shriek. What is its wavelength (in m) if the speed of sound is 345 m/s? m Additional Materials O Reading

A 4.50 m long rope is stretched between two supports with a tension that makes the speed of transverse waves 60.0 m/s . For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of A bass string. Part A What is the wavelength of the fundamental tone? Express your answer in meters. ? m %3D Submit Request Answer Part B What is the frequency of the fundamental tone? Express your answer in hertz. ? fi = Hz Submit Request Answer Part C What is the wavelength of the second overtone? Express your answer in meters.

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A convertible moves toward you and then passes you; all the while, its loudspeakers are producing a sound. The speed of the car is a constant 8.93 m/s, and the speed of sound is 342 m/s. What is the ratio of the frequency you hear while the car is approaching to the frequency you hear while the car is moving away? Number i eTextbook and Media 2 Save for Later -->> # 3 W e C $ 4 Units S d f X C Attempts: 0 of 3 used Submit Answer 205 % & * ( 6 7 8 9 t y 60 > b כ 8 Apr 30 i O P h j k n m alt ctri

Answer to part A: 101 Hz I need help with parts: B, C, D