Connect with LearnSmart for Krauskopf: The Physical Universe, 16e
16th Edition
ISBN: 9781259663895
Author: KRAUSKOPF, Konrad B.
Publisher: Mcgraw-hill Higher Education (us)
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Chapter 9, Problem 43E
To determine
What is the explanation for the same frequencies of random motion of the excited gas and emission spectrum of the gas.
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b. An electron and a photon has the same wavelength of 0.21 nm.
Calculate the momentum and energy (in eV) of the electron and
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(Given c =3.00x108 m s-1, h =6.63 x 1034 J s, me=9.11 x 10-31 kg,
mp=1.67 x 1027 kg and e=1.60x1019 C)
A log in the fire is glowing red (λ = 629 nm). What is the temperature of the log, in kelvin?
A neutron of mass  1.675 × 10-27 kg has a de Broglie wavelength of 7.8x10-12 m.  What is the kinetic energy (in eV) of this non-relativistic neutron? Please give your answer with two decimal places.
1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ∙ s.
Chapter 9 Solutions
Connect with LearnSmart for Krauskopf: The Physical Universe, 16e
Ch. 9 - Prob. 1MCCh. 9 - Prob. 2MCCh. 9 - Prob. 3MCCh. 9 - Prob. 4MCCh. 9 - Prob. 5MCCh. 9 - Prob. 6MCCh. 9 - Prob. 7MCCh. 9 - Prob. 8MCCh. 9 - Prob. 9MCCh. 9 - Prob. 10MC
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