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The lowest pitched sounds humans can generally hear have a frequency of roughly 20 hz. what is the approximate wavelength of these sound waves if their wave speed is 340 m/a?
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The chemical effect of the endocrine system is longer lasting than the chemical effect of the nervous system. select the best answer from the choices provided t f
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Which of the following is not am example of a polymer? protein nylon kevlar concreta
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Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.
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Physics, 22.06.2019 18:00
By what primary heat transfer mechanism does the sun warm the earth?
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The lowest pitched sounds humans can generally hear have a frequency of roughly 20 hz. what is the a...
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