Chemistry, 18.04.2020 00:39, anonymousgirl2002
1. What are the wavelengths of sound waves at the limits of human hearing - 20 Hz and 20 kHz? The speed of sound in 20 ºC (72 ºF) air is 343 m/s
2. The wavelength of microwaves in an oven is 12 cm. What is the frequency of the waves?
3. What is the frequency of a photon that has a wavelength of 4.87 x 10^7 m?
Answers: 1
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Which solution is an example of a nonelectrolyte? a. iodine in hexane b. sodium nitrate in waterc. acetic acid in waterd. hydrogen chloride in water
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In a copper wire, a temperature increase is the result of which of the following
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1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?
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1. What are the wavelengths of sound waves at the limits of human hearing - 20 Hz and 20 kHz? The sp...
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