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How are electromagnetic waves are different than mechanical waves?
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a. electromagnetic waves are self-propagating and mechanical waves are not.
b. electromagnetic waves require a medium to travel and mechanical waves do not.
c. electromagnetic waves do not require a medium and mechanical waves do require a medium to travel.
d. electromagnetic waves are always transversal, while mechanical waves can be transverse, longitudinal, or torsional.
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Physics, 22.06.2019 10:40
Two point charges are on the y axis. a 3.90-Β΅c charge is located at y = 1.25 cm, and a -2.4-Β΅c charge is located at y = β1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v
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Physics, 22.06.2019 22:00
Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.
Answers: 3
Physics, 23.06.2019 02:00
Five structural isomers have the formula c6h14. where needed, draw the structure and give the iupac name of all five isomers.
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How are electromagnetic waves are different than mechanical waves?
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select all that apply.
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