Physics, 30.03.2021 21:20 karencbetancourt
What is the minimum frequency of light needed to make photoelectrons when this light strikes a metal with a work function of 2.25 eV? What wavelength light is this in nm?
Answers: 3
Physics, 22.06.2019 14:30
Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?
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Physics, 22.06.2019 14:40
You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.
Answers: 2
What is the minimum frequency of light needed to make photoelectrons when this light strikes a metal...
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