Pearson eText -- Physics for Scientists and Engineers with Modern Physics -- Instant Access (Pearson+)
5th Edition
ISBN: 9780137488179
Author: Douglas Giancoli
Publisher: PEARSON+
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Question
Chapter 38, Problem 4Q
To determine
The reason for the baseball to have a well-defined position and speed, whereas an electron does not based on the uncertainty principle.
Expert Solution & Answer
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Check out a sample textbook solutionStudents have asked these similar questions
(Bonus 7 pts)
(a) Let's reconsider particle-in-a-box model (with 12 electrons) in question 1 by modifying a
rectangular particle-in-a-box. When the height of box in Q1 is reduced to a half (see below),
construct an energy-level diagram showing the relative energy ordering of the lowest 8
molecular orbitals when this cube is a xa x 0.5a. Label the levels in terms of their quantum
numbers and Eo (Eo = h2/8ma²). Be alert for degeneracies.
S
Fe
Fe
0.5a
E3D
111: 6 to
211=96
121=9E.
112: 136.
221-126.
h²
n
5:蒜(++)
h²
8m
h²
8m
ha
Bmaz
(4)
(n} +
(0.5a)2
n?
+
वर
0-2592)
+ n + 42) = E (n² + n²² + 4 m²)
E = 120f6€ = GE
125.
Calculate the uncertainty in the momentun of an electron laying in a state with uncertainty in its position of 5×10^10m
. Suppose a quanton's wavefunction at a given time is y(x) = A[1 + (x/a)2]-¹, where A is an
unspecified constant and a = 4.0 nm. According to the table integrals
dx
√
[1 + (x/a)²]² = 1 + (x/a)²+2tan ¹ (2)
If we were to perform an experiment to locate the quanton at this time, what would the
probability of a result between x = 0 and x = 8.0 nm?
Chapter 38 Solutions
Pearson eText -- Physics for Scientists and Engineers with Modern Physics -- Instant Access (Pearson+)
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