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Physics, 21.06.2019 21:30
According to social exchange theory, altruistic behaviors benefit the individual who performs them.
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Physics, 22.06.2019 14:20
Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.
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Physics, 22.06.2019 22:30
You add 800 ml of water at 20c to 800 ml of water at 80c what is the most likely final temperature of the mixture ? a. 100c b. 60c c. 25 c d.50c
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Social Studies, 19.08.2019 16:00
Health, 19.08.2019 16:00
Biology, 19.08.2019 16:00
Biology, 19.08.2019 16:00
Social Studies, 19.08.2019 16:00
Mathematics, 19.08.2019 16:00
Mathematics, 19.08.2019 16:00
Chemistry, 19.08.2019 16:00
Social Studies, 19.08.2019 16:00