Question

I need help with this 4 problems. I'll appreciate if you can do them.

Thank you!!

2. Two tuning forks are producing sounds of wavelength 34.12 cm and 33.94 cm simultaneously. How many beats do you hear each second? 3. A violinist is tuning her instrument to concert A (440.0 Hz). She plays the note while listening to an electronically generated tone of exactly 440.0 Hz and hears 3.000 beats a second. What two possible frequencies could be coming from the violin? a. b. Now, when she tightens her violin string slightly she hears 2.000 beats a second. What was the frequency of her violin when she heard 3.000 beats a second? The siren of a fire engine that is driving northward at 30.00 m/s emits a frequency of 1600 Hz. A truck in front of this fire engine is moving northward at 20.00 m/s. 4. a. What frequency does the truck driver hear? The siren's sound reflects off the back of the truck and is heard by the driver of the fire engine. What is this reflected frequency heard by fire engine's drive? b. 65

Answer 1

kindly do not ask more than one question at a time

Beat freuency bf 2. 220 S. I 25