Chemistry, 11.01.2021 18:50 allisonmoon9012
As the world is increasing in population, the sound from traffic is a significant issue.
The U. S. Department of Transportation recognizes that noise from highways is a
large issue, particularly for those who live close to the highway. Engineers have come
up with several solutions to the problem. One solution is noise barriers which can be
dirt mounds between a highway and homes or high vertical walls. A second solution
is planting vegetation such as trees.
Select one of the two options and answer the following:
1. Identify the wave interaction involved in your chosen solution. (i. e. refraction,
reflection, diffraction)
2. Explain how the interaction would reduce noise for the homeowners.
3. Identify how the interaction would affect noise for the highway.
Answers: 3
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If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax
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Chemistry, 22.06.2019 20:00
The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.
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Chemistry, 22.06.2019 22:30
Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.
Answers: 2
As the world is increasing in population, the sound from traffic is a significant issue.
The U. S....
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