Physics, 29.06.2019 18:00 haleysnyder6464
During the day, the sun appears yellow in the sky. but as sunset approaches, the sun appears to change color. this can be explained by the a) absorption of yellow wavelengths on earth and the reflection of red into the atmosphere. b) change in water color on earth that is then reflected into the sky as red and orange hues. c) scattering of light due to particulates in the atmosphere sending mostly red and orange wavelengths back to our eyes. d) refraction of white light into only two color bands, red and orange and the reflection of those colors into the atmosphere. submit
Answers: 1
Physics, 21.06.2019 16:30
When a neutrally charged atom loses an electron to another atom, the result is the creation of a. two charged atoms. b. two negatively charged atoms. c. two positively charged atoms. d. two neutrally charged atoms.
Answers: 1
Physics, 22.06.2019 12:10
Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?
Answers: 2
Physics, 22.06.2019 14:30
Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.
Answers: 2
Physics, 22.06.2019 22:30
Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?
Answers: 3
During the day, the sun appears yellow in the sky. but as sunset approaches, the sun appears to chan...
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