This preview shows page 1. Sign up to view the full content.
Unformatted text preview: reaches terminal velocity. A worker in an oce in the building notes that the frequency of tourists scream decreases from 846 to 824 Hz as he passes her window. Note the speed of sound in air is 343 m/s. What is the speed of descent of the tourist? The tourists scream generates beats when it is mixed with its echo from the sidewalk at the foot of the building. Find the number of beats per second heard by the worker after the tourist has passed by the window. (Hint: what is the frequency of the scream heard by a passerby on the sidewalk?) Find the number of beats per second heard by the tourist. 5. A tuning fork with frequency f = 512 Hz is dropped from on top of a tower with a height of 200m. What is the frequency heard by person who dropped it, 5s later? 1...
View Full Document
- Spring '08