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9. Quantum Mechanics

Heisenberg Uncertainty Principle

9. Quantum Mechanics

Heisenberg Uncertainty Principle

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Heisenberg Uncertainty Principle

Heisenberg Uncertainty Principle

Heisenberg Uncertainty Principle Example 1

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The Heisenberg Uncertainty Principle Part 2: Energy/Time and Quantum Fluctuation

Professor Dave Explains

The Heisenberg Uncertainty Principle Part 1: Position/Momentum and Schrödinger's Cat

Professor Dave Explains

The Uncertainty Principle is NOT about "Uncertainty"

The Science Asylum

What is the Heisenberg Uncertainty Principle: Explained in Simple Words

Heisenberg's Uncertainty Principle

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Multiple Choice

To what uncertainty (in m) can the position of a baseball traveling at 51.0 m/s be measured if the uncertainty of its speed is 0.12%? The mass of the baseball is 150 g.

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Multiple Choice

A proton with a mass of 1.67 x 10^-27 kg traveling at 4.7 x 10⁵ m/s has an uncertainty in its velocity of 1.77 x 10⁵ m/s. Determine its uncertainty in position.

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Multiple Choice

An electron with a mass of 9.11 x 10-31 kg has an uncertainty in its position of 630 pm. What is the uncertainty in its velocity?

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Multiple Choice

Which of the following statements about the Heisenberg uncertainty principle is false?

Textbook Question

Using Heisenberg's uncertainty principle, calculate the uncertainty in the position of (b) a proton moving at a speed of 15.00 { 0.012 * 104 m/s. (The mass of a proton is given in the table of fundamental constants in the inside cover of the text.)

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Textbook Question

Using Heisenberg's uncertainty principle, calculate the uncertainty in the position of (a) a 1.50-mg mosquito moving at a speed of 1.40 m/s if the speed is known to within {0.01 m/s;

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Textbook Question

Calculate the uncertainty in the position of (a) an electron moving at a speed of 13.00 { 0.012 * 105 m/s

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Textbook Question

An electron has an uncertainty in its position of 552 pm. What is the uncertainty in its velocity?

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Textbook Question

An electron traveling at 3.7 * 105 m>s has an uncertainty in its velocity of 1.88 * 105 m/s. What is the uncertainty in its position?

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Textbook Question

Use the Heisenberg uncertainty principle to calculate the uncertainty in meters in the position of a honeybee weighing 0.68 g and traveling at a velocity of 0.85 m/s. Assume that the uncertainty in the velocity is 0.1 m/s.

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Textbook Question

The mass of a helium atom is 4.0026 amu, and its average velocity at 25 °C is 1.36 * 103 m/s. What is the uncertainty in meters in the position of a helium atom if the uncertainty in its velocity is 1%?

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Textbook Question

What is the Heisenberg uncertainty principle, and how does it affect our description of atomic structure?

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Textbook Question

Why do we have to use an arbitrary value such as 90% to determine the spatial limitations of an orbital?

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Textbook Question

As discussed in the A Closer Look box on 'Measurement and the Uncertainty Principle,' the essence of the uncertainty principle is that we can't make a measurement without disturbing the system that we are measuring. (a) Why can't we measure the position of a subatomic particle without disturbing it?

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Textbook Question

Consider the discussion of radial probability functions in 'A Closer Look' in Section 6.6. (a) What is the difference between the probability density as a function of r and the radial probability function as a function of r ?

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What is the uncertainty of the position of the bacterium?

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