Physics for Scientists and Engineers Foundations and Connections by Debora M. Katz | 9781305259836 | 1305259831 | Holooly

Physics for Scientists and Engineers Foundations and Connections

418 SOLVED PROBLEMS

Question: 43.9

Are bananas safe to eat? Potassium K is an important mineral in the human body. Your muscles need potassium to operate, potassium keeps the sodium levels in your body under control, and all of your cells need potassium to function normally. The average adult needs 4700 mg of potassium per day. Many ...

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INTERPRET and ANTICIPATE The absorbed dose D is th...

Question: 42.10

CASE STUDY The Zeeman Effect in the Sun’s Hydrogen Spectrum In 1908, George Hale was the first person to exploit the Zeeman effect to measure the magnetic field in sunspots. Although Hale observed heavy elements such as iron, we’ll consider how we might observe the Zeeman effect in the Sun’s ...

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A. INTERPRET and ANTICIPATE The difference in ener...

Question: 42.7

Excited States of Hydrogen Suppose a hydrogen atom’s energy is -1.51 eV. How many separate states are available to it? Take into account the possible values of l, m, and ms. ...

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Interpret and Anticipate This example is much like...

Question: 42.6

Radial Probability density for Hydrogen in 2p states Figure 42.16 shows the radial probability density for hydrogen in both the n = 2, l = 0 and n = 2, l = 1 subshells. The radial probability density for the l = 1 subshell peaks at rmax = 4rB. The radial probability density for the l = 0 peaks at ...

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INTERPRET and ANTICIPATE We know the wave function...

Question: 42.5

De Broglie’s Model of Hydrogen If a hydrogen atom’s energy is – 1.51 eV, what is the de Broglie wavelength of the atomic electron? ...

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INTERPRET and ANTICIPATE Use the energy-level diag...

Question: 42.3

CASE STUDY Other Hydrogen Lines Use the information in Figure 42.7 to find the wavelength of the first (lowest energy) line of the Lyman, Paschen, and Brackett series. In what part of the electromagnetic spectrum are these lines found? ...

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INTERPRET and ANTICIPATE Find the wavelength of th...

Question: 42.2

Orbiting Electrons in Hydrogen Let’s examine Rutherford’s model more closely. Consider hydrogen, the simplest atom, with a nucleus consisting of a single proton that is orbited by a single electron. Model the nucleus as a sphere with a radius of roughly 10^-15 m, and assume the electron orbits the ...

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Interpret and Anticipate We could have done this p...

Question: 41.11

Hawking Radiation Is NOT Science Fiction In the previous example, we imagined a whole meal being created from nothing. The result was that such a meal could only exist for a negligible amount of time. But don’t think that such events are impossible. The British physicist Stephen Hawking has a ...

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INTERPRET and ANTICIPATE Like the previous example...

Question: 41.3

Average Position for a Particle in an Infinite One-Dimensional Well, Classical Approach Consider the hockey puck trapped between the walls of the one-dimensional box in Figure 41.1. As described in Section 41-2, when the puck encounters a wall, it reverses direction instantaneously and there are no ...

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INTERPRET and ANTICIPATE The expectation value is ...

Question: 40.10

CASE STUDY Comparing a Conventional Microscope to an Electron Microscope In this example, we compare a conventional microscope that illuminates a sample with an electromagnetic wave to an electron microscope (of either design) that uses an electron wave. Suppose you wish to image a strand of DNA, ...

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A. INTERPRET and ANTICIPATE Use the estimated wave...

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