Q- Joan goes skydiving. As she is falling at terminal velocity, she screams very loudly with a frequency of 1500 Hz. If her friend on the ground directly below her measures the frequency of her scream to be 2000 Hz, how fast is she falling? She hears the echo of her scream as it bounces off the grou…
Q- Two speakers are driven by the same oscillator of frequency 200 Hz. They are located horizontally at a distance of 6 meters from each other. Barbara stands in front of one speaker very far away, and walks towards the speaker. How many times will she hear a minimum intensity as she walks from far …
Q1- Two loudspeakers emit 430 Hz notes. One speaker sits on the ground. The other speaker is in the back of a pickup truck. You hear 9 beats per second as the truck drives away from you. What is the truck's speed?
Q2- A balloon driven by a 35 km/h wind emits a sound of 860 Hz as it approaches a tal…
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