Explanation Introduction: The phosphorescence and the fluorescence is the configuration of photoluminescence. In the phosphorescence and the fluorescence process the electrons releases light by absorbing energy when the electron return to a stable state. The phosphorescence is a process in which the materials emits lower wavelength radiation and absorb higher wavelength radiation as compared to lower wavelength radiation. In the phosphorescence the electrons releases light by absorbing energy when the electron return to a stable state. The difference between phosphorescence and fluorescence is following. Phosphorescence Fluorescence 1. In the Phosphorescence process the spin direction of electron does not changes. 1...

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ISBN: 9781711470832

Author: OpenStax

Publisher: XANEDU

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Chapter 30, Problem 10TP

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The explanation of phosphorescence, the difference between phosphorescence and fluorescence, the longer process and the reason for the longer process.

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Chapter 30, Problem 9TP

Chapter 30, Problem 11TP

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I. Pushing on a File Cabinet Bob has been asked to push a heavy file cabinet down the hall to another office. It's not on rollers, so there is a lot of friction. At time t = 0 seconds, he starts pushing it from rest with increasing force until it starts to move at t = 2 seconds. He pushes the file cabinet down the hall with varying amounts of force. The velocity versus time graph of the cabinet is shown below. A. On the graphs provided below, 1. draw the net force vs. time that would produce this velocity graph; 2. draw the friction force vs. time for this motion; 3. draw the applied force (Fon Cabinet by Bob) VS. time for this motion (the first two seconds of this graph have been drawn for you). Velocity (m/s) Applied Force (N) Friction Force (N) Net Force (N) A -m B -U time (s) D time (s) time (s) time (s)

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Ch. 30 - Name three different types of evidence for the...Ch. 30 - Explain why patterns observed in the periodic...Ch. 30 - If atoms exist, why can't we see them with visible...Ch. 30 - What two pieces of evidence allowed the first...Ch. 30 - How do the allowed orbits for electrons in atoms...Ch. 30 - How do the allowed orbits for electrons in atoms...Ch. 30 - Explain how Bohr's rule for the quantization of...Ch. 30 - What is a hydrogen-like atom, and how are the...Ch. 30 - Explain why characteristic x rays are the most...Ch. 30 - Why does the energy of characteristic x rays...

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