A person standing in the street is unaware of a bird dropping that is falling from a point directly above him with increasing velocity. If the dropping were producing sound of a fixed frequency, as it approaches the person would hear the sound
a. drop in frequency.
b. stay at the same frequency.
c. increase in frequency.
d. decrease in loudness.
e. stay at the same loudness.
Question 2
While you are sounding a tone on a toy whistle, you notice a friend running toward you. If you want her to hear the same frequency that you hear even though she is approaching, you must
a. stay put.
b. run towards her at the same speed. c. run away from her at the same speed. d. stay put and play a note of higher frequency.
e. run towards her and play a note of higher frequency.
Wilson's bird of paradise
Two-point linear perspective.
Bird carved from soapstone, Great Zimbabwe, Zimbabwe.
The energy set-point view that is the basis of many people’s thinking about hunger and eating.
Decimal Values as They Relate to the Location of the Decimal Point
Summary of the effects on transcription levels of different point mutations