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Physics, 22.06.2019 15:30
This is the number of complete movements of a wave per second.
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Physics, 22.06.2019 19:30
The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?
Answers: 1
Physics, 22.06.2019 19:30
Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.
Answers: 1
Physics, 23.06.2019 00:30
What practical value did astronomy offer to ancient civilizations?
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Express 9.39 · 109 seconds in terms of days...
Mathematics, 14.01.2021 21:30
Mathematics, 14.01.2021 21:30
Mathematics, 14.01.2021 21:30
Mathematics, 14.01.2021 21:30
Mathematics, 14.01.2021 21:30
Mathematics, 14.01.2021 21:30
Computers and Technology, 14.01.2021 21:30
Mathematics, 14.01.2021 21:30
Mathematics, 14.01.2021 21:30