EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
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Chapter 38, Problem 12Q
To determine
Whether the uncertainty principle sets a limit for the preciseness of any single measurement of position.
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If an electron has an uncertainty in its position of 4.20 × 10-2 m, what is the uncertainty in its velocity (in m/s)?
If the speed of an electron is measured to within an uncertainty of 2.0x104 m/s, what would
be the size of the smallest region of space in which the electron can be confined? me = 9.11 x 10-31
kg.
2.
Question 5
1) An electron is moving along x axis with the speed of 2×106 m/s (known
with a precision of 0.50%). What is the minimum uncertainty with which
we can simultaneously measure the position of the electron along the x
axis? Given the mass of an electron 9.1×10-31 kg
Answer
Chapter 38 Solutions
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- The uncertainty in the velocity of an electron is 43 × 10-3 m/s. What is the uncertainty in its position? answer in units of mm accurate to two decimal places.arrow_forwardWhat is the minimum uncertainty in position, in nm, of an electron whose velocity is known to be between 2.96x105 m/s and 3.08×105 m/s ? Express your answer using two significant figures. Vη ΑΣφ x" х.10п 9.7 nm Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remainingarrow_forwardDoes the uncertainty principle set a limit to how well youcan make any single measurement of position? Explain.arrow_forward
- The uncertainty in the velocity of an electron is 53 × 10-3 m/s. What is the uncertainty in its position?Please give your answer in units of mm, accurate to two decimal places.arrow_forwardThe speed of an electron is measured to within an uncertainty of 2.0 × 104 m/s. What is the size of the smallest region of space in which the electron can be confined?arrow_forwardSuppose the position of a chlorine ion in a membrane is measured to an accuracy of 0.75 μm. a) What is its minimum uncertainty in velocity in meters per second, given its mass is 5.86 × 10-26 kg? b) If the ion is measured to have a velocity of 8.9 × 103 m/s, what is the uncertainty in its kinetic energy in electron volts?arrow_forward
- An electron is moving with a velocity of 2.56 x10’ m/s. Calculate the minimum possible uncertainty in its position. (a) 0.038×10-12 m c (b) 4.50 x10-10 (c) 4.50 x10-12 m (d) None of the above marrow_forwardThe speed of an electron is 5.67 x 106 m/s with an uncertainty of 7 x 104 m/s. What is the minimum uncertainty with which you can measure its position? Please give your answer in nanometers (1 nm = 10-9 m)arrow_forwardIf the speed of an electron is measured to within an uncertainty of 2.0×10 4 m/s, what wouldbe the size of the smallest region of space in which the electron can be confined? me = 9.11×10 -31kg.arrow_forward
- An electron has been accelerated by a potential difference of 100 V. If its position is known to have an uncertainty of 1 nm, what is the percent uncertainty (Δp/p×100) of the electronarrow_forwardIf an electron has an uncertainty in its velocity of 4.10 m/s, what is the uncertainty (in meters) in its position?arrow_forwardEstimate the uncertainty in the position of a 50 kg person moving at 2m/sec?arrow_forward
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