[Q]: An organ pipe produces a musical note same number of nitrogen gas molecules. with a wavelength of 2.72 m. What is the frequency of this note if the speed of sound is 348 m/s?
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OPTIONS:
- 85.7 Hz
- 128 Hz
- 260 Hz
- 466 Hz
****
[A]: 128 Hz

[Q]: The surface of a heated metal object measures 120C. It is dropped into a bucket filled with water measuring 10C. Which of the following is most likely to occur?
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OPTIONS:
- Both the water and metal will adjust to the same temperature below 10C.
- The water and metal will adjust to different temperatures above 120C.
- The water will remain the same temperature, but the metal will cool to 10C.
- The water and metal will adjust to the same temperature between 10C and 120C.
****
[A]: The water and metal will adjust to the same temperature between 10C and 120C.

[Q]: Growth and repair in multicellular organisms are the result of
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OPTIONS:
- excretion
- locomotion
- cell division
- decomposition
****
[A]:
cell division