Modified Mastering Physics With Pearson Etext -- Standalone Access Card -- For Physics For Scientists & Engineers With Modern Physics (5th Edition)
5th Edition
ISBN: 9780134402628
Author: Douglas C. Giancoli
Publisher: PEARSON
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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.
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Imagine playing baseball in a universe (not ours!) where the Planck constant is 0.60 J s and thus quantum physics affects macroscopic objects. What would be the uncertainty in the position of a 0.50 kg baseball that is moving at 20 m/s along an axis if the uncertainty in the speed is 1.0 m/s?
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Chapter 38 Solutions
Modified Mastering Physics With Pearson Etext -- Standalone Access Card -- For Physics For Scientists & Engineers With Modern Physics (5th Edition)
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- What difficulties does the uncertainty principle cause in trying to pick up an electron with a pair of forceps? Does the uncertainty principle apply to nature itself or only to the results of experiments? That is, is it the posi- tion and momentum that are really uncertain, or merely our knowledge of them? What is the difference between these two interpretations?arrow_forwardI need the answer as soon as possiblearrow_forward2. What is the magnetic dipole moment of a sphere of uniform surface charge density o, which rotates with constant angular velocity o about an axis of the sphere? An electron has a permanent magnetic dipole moment of magnitude: eħ (Bohr magneton). 2mc u = Suppose the electron is a rotating spherical shell of charge with "classical electron radius": e? mc What is the velocity at the equator? Can classical electrodynamics explain the origin of the electron magnetic moment?arrow_forward
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