Physics, 24.07.2019 17:10 bentleyevans15
How does the electrostatic force compare with the strong nuclear force in the nucleus of an atom?
a) the electrostatic force acts over short distances and is weaker.
b) the electrostatic force acts over long distances and is stronger.
c) the electrostatic force is only repulsive and acts over shorter distances.
d) the electrostatic force is only repulsive and acts over longer distances.
Answers: 1
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.
Answers: 1
Physics, 22.06.2019 17:40
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Physics, 23.06.2019 01:00
What electron configurations do atoms usually achieve by sharing electrons to form covalent bonds?
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Physics, 23.06.2019 02:30
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How does the electrostatic force compare with the strong nuclear force in the nucleus of an atom?
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