Consider the following:
I. the speed of the observer;
II. the speed of the sourc...
Physics, 21.04.2020 01:27 almaga1979orfvwo
Consider the following:
I. the speed of the observer;
II. the speed of the source;
III. the loudness of the sound.
In the Doppler effect for sound waves, which factors affect the frequency that the observer hears?
1. B only
2. None of these
3. C only
4. A only
5. A, B, and C
6. A and C only
7. B and C only
8. A and B only
Answers: 2
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Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.
Answers: 2
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