Physics

Physics, 30.07.2019 17:00, kroe417

Which describes the changes in visible light moving from red to violet? the energy increases. the speed decreases. the wavelength increases. the frequency decreases.

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Physics, 22.06.2019 22:00, jerry7792

1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light

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Mathematics, 26.08.2019 19:00, selena5713

Which of the following describes the end behavior over the domain of the square root function graphed above? as x decreases in value, x) decreases in value, as x increases in value, ) increases in value, as x decreases in value, (x) increases in value, as x increases in value, ) decreases in value, as x decreases in value, as x increases in value, increases in value, increases in value, as x decreases in value, f) decreases in value, as x increases in value, f) decreases in value, dmentum. all rights reserved.

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Physics, 27.08.2019 04:00, dania1524

As we move through the visible spectrum, red to violet (right to left in the image), the wavelength and the frequency a) increases; decreases b) increases; increases c) decreases; increases d) decreases; decreases

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Physics, 04.10.2019 20:20, morganturgeon29

20)in this diagram, medium a represents water and medium b represents air. the phenomenon in this diagram, moving from a to b, is called a) diffraction. b) dispersion. c) refraction. d) resolution. 21)if you put a straw into a glass of water, the straw looks to be bent, although nothing has physically happened to the straw. the term that describes this property of light is a) absorption. eliminate b) diffraction. c) reflection. d) refraction. 22)as we move through the visible spectrum, red to violet (right to left in the image), the wavelength and the frequency a) increases; decreases b) increases; increases c) decreases; increases d) decreases; decreases 23)according to the electromagnetic spectrum, gamma rays have the shortest wavelength. therefore, gamma rays have frequency. a) a random b) the lowest c) the highest d) an undetermined 24)an echo is an example of sound wave a) diffraction. b) interference. c) reflection. d) refraction. 25)why does light refract when it encounters the glass in a lens? a) because it speeds up, which causes it to bend b) because it slows down, which causes it to bend c) because it hits a dense medium, which causes it to bounce off d) because it gets absorbed, which causes it to lessen in intensity

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