While sitting next to a road on a calm, warm 27.9ºC evening, you see an ambulance's lights flashing in the distance coming towards you. You hear a frequency of 150 Hz (you have a very keen ear!). However, you know that ambulances have sirens that emit sound at 140 Hz. How fast is the ambulance approaching you, in m/s

Q: What is The direction of A=2i-5j

A:

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A: D

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A: Given,…

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Q: what frequency corresponds the wavelength of 4.3 [m]. If the speed of sound is 343 [m / s

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Q: frequency

A:

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A: The given temperature of the air is, T=-128.6° F=5-128.6-329° C=-89.222° C=-89.222+273 K=183.778 K

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A: Given data: Outdoor temperature, T=25.5° C. Time taken to hear echo, t=1.95 s.  Temperature in cold…

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A: Given that,speed of sound, v=343 m/secbat flying in a cave emits a sound and receives its echo 0.06…

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A: Given: f = 59.3 KHz = 59300 Hz v = 339 m/s Smallest size will be equal to the wavelength.

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Q: You place your ear onto a steel railroad track and hear the sound of a distant train through the…

A: Given:time difference between air and steel transmission, Δt= 3.6 sspeed of sound in steel, vs =…

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A: