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Answers by Vecnas

Answers by Vecnas
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A truck is blowing its horn as it approaches a bystander at an intersection. According to the Doppler Effect, the bystander will notice that the sound- A. increases in pitch B. increases in wavelength
answered Mar 24, 2019
5 votes
126k views
A contraceptive that permanently prevents transport of the sperm or egg to the site of conception is a
answered Nov 22, 2018
4 votes
189k views
What is the energy of a photon of green light?
answered Nov 8, 2018
2 votes
226k views
When a comet nears the sun what happens to its nucleus it becomes solid it becomes visible it disappears it becomes gas
answered Oct 6, 2018
7 votes
165k views
Find the constant of variation, k, for y= –8 varies directly when x = 12.
answered Jun 14, 2018
5 votes
855 views
one molecule of chlorophyll contains 137 atoms. how many of these atoms come from the metal magnesium?
answered Dec 10, 2017
6 votes
235k views
Explain the steps you would take to write 36\10 as a decimal.
answered Nov 11, 2017
6 votes
188k views
The sun making your skin feel warm is heat transfer by A. convection B. reflection C. radiation D. conduction
answered Oct 8, 2017
5 votes
230k views
Population growth during the Gilded Age was due in large part to
answered Apr 25, 2017
6 votes
125k views
Which area is studied by biologists
answered Apr 17, 2017
0 votes
70.1k views
What are the geographical reasons for the population density of California
answered Jun 2, 2016
4 votes
33.2k views
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