Pearson eText for College Physics: Explore and Apply -- Instant Access (Pearson+)
2nd Edition
ISBN: 9780137443000
Author: Eugenia Etkina, Gorazd Planinsic
Publisher: PEARSON+
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Question
Chapter 28, Problem 56P
To determine
The experimental evidence in support of the uncertainty principle.
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64. Protons can be accelerated to speeds near that of light in particle accelerators. Estimate the wavelength (in nm) of such a proton moving at 2.84×108 m/s(mass of a proton = 1.673×10−27 kg). Enter your answer in scientific notation.
Could you please give reasons for your choice of answers.
In which problem is the uncertainty principle coming handy? Mark more than one answer if necessary.
A. To find out that the nuclear force is spin dependent.
B. To find out how dark energy is made of.
C. To solve Borh's hydrogen atom.
D. To solve the range of the nuclear force.
E. To solve the eigenvalues of the harmonic oscillator using the Schrodinger equation.
1. If the energy density of the cosmic background of a parallel universe is 4.73 x 10^-13 J/m³, according to Planck's Law, what is the temperature of that universe?
625°C
625 K
5.0 K
1.5 x10¹¹ K
None of the above
2. Which statement is true regarding Bohr model of the atom?
It assumes stable electronic orbits whose radii and energies are quantized.
It perfectly explains the emission lines in the hydrogen spectrum.
An orbiting electron will gradually lose energy and should eventually spiral down to the nucleus leading to the collapse of the atom. But this expected consequence is not happening. The model model does not explain this fact.
1 and 2
2 and 3
1 and 3
2 only
All are true.
Chapter 28 Solutions
Pearson eText for College Physics: Explore and Apply -- Instant Access (Pearson+)
Ch. 28 - Prob. 1RQCh. 28 - Prob. 2RQCh. 28 - Prob. 3RQCh. 28 - Prob. 4RQCh. 28 - Prob. 5RQCh. 28 - Prob. 6RQCh. 28 - Prob. 7RQCh. 28 - Prob. 8RQCh. 28 - Prob. 1MCQCh. 28 - Prob. 2MCQ
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