# A 100 W sodium lamp (l 589 nm) radiates energy uniformly in all directions. (a) At what ## Problem 9 Chapter 38

Fundamentals of Physics, Volume 2 (Chapters 21 - 44) | 10th Edition

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Problem 9

A 100 W sodium lamp (l 589 nm) radiates energy uniformly in all directions. (a) At what rate are photons emitted by the lamp? (b) At what distance from the lamp will a totally absorbing screen absorb photons at the rate of 1.00 photon/cm2 s? (c) What is the photon flux (photons per unit area per unit time) on a small screen 2.00 m from the lamp?

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Linear Momentum - Product if mass and velocity of an object - ⃗ = ⃗ - SI unit: kg*m/s - A vector - The total momentum of a system of objects is the vector sum of the momenta of all the objects - ⃗⃗⃗⃗⃗⃗⃗⃗⃗⃗⃗⃗⃗⃗ +⃗⃗⃗⃗⃗⃗⃗⃗⃗⃗ + ⋯ 1 2 3 Momentum and Newton’s Second Law ⃗ - Ʃ = ⃗ - The net...

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##### ISBN: 9781118230732

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A 100 W sodium lamp (l 589 nm) radiates energy uniformly in all directions. (a) At what

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