Physics, 18.08.2021 20:10, groverparham3
Oppositely charged objects attract each other. This attraction holds electrons in atoms and holds atoms to one
another in many compounds. However, Ernest Rutherford's model of the atom failed to explain why electrons were
not pulled into the atomic nucleus by this attraction.
What change to the atomic model helped solve the problem seen in Rutherford's model?
Bohr's work with atomic spectra led him to say that the electrons were limited to existing in certain energy levels,
like standing on the rungs of a ladder.
O Bohr's work with cathode rays led him to say that the electrons were located within the mass of positive material,
like plums in a pudding.
O Thomson's work with cathode rays led him to say that the electrons were located within the mass of positive
material, like plums in a pudding.
O Thomson's work with atomic spectra led him to say that the electrons were limited to existing in certain energy
levels, like standing on the rungs of a ladder.
Answers: 3
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Select the word from the list that best fits the definition classification of most stars on the h-r diagram
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Physics, 22.06.2019 14:20, timothyashburn8
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 16:40, sabrinarea041904
Which are true about beta reactions? there will be more than one answer. a. it has no change b. it doesn't change the mass of the number c. it has a mass of 0.0005 atoms d. it causes transmutation.
Answers: 3
Oppositely charged objects attract each other. This attraction holds electrons in atoms and holds at...
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