Chapter 37: The Foundations of Modern Physics

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics

Pages: 1063 - 1084

Book edition 4th

Author(s) Randall D. Knight

Pages 1240 pages

ISBN 9780133942651

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130 Questions for Chapter 37: The Foundations of Modern Physics

Explain why the observation of alpha particles scattered at very large angles led Rutherford to reject Thomson’s model of the atom and to propose a nuclear

Found on Page 1081
An electron in a cathode-ray beam passes between 2.5cm-long parallel-plate electrodes that are 5.0mm apart. A 2.0mT, 2.5-cm-wide magnetic field is perpendicular to the electric field between the plates. The electron passes through the electrodes without being deflected if the potential difference between the plates is

Found on Page 1082
An alpha particle (a bare helium nucleus with q=+2e) accelerates across a 100 V potential difference, starting from rest. What is the particle’s kinetic energy in eV when it reaches the negative electrode? This question requires no mathematics beyond what you can do in your he

Found on Page 1081
An oil droplet with 15excess electrons is observed between two parallel electrodes spaced 12mm apart. The droplet hangs motionless if the upper electrode is25V more positive than the lower electrode. The density of the oil is 860kg/m3. What is

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Suppose that in a hypothetical oil-drop experiment you measure the following values for the charges on the drops:3.99×10-19C,6.65×10-19C,2.66×10-19C, 10.64×10-19C, and9.31×10-19C. What is the largest value of the fundamental unit of charge that is consistent

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Figure 37.7 identified the wavelengths of four lines in the Balmer series of hydrogen.

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What temperature, in °C, is a blackbody whose emission spectrum peaks at (a)300nm and (b)3.00mm?

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A ceramic cube 3.0cm on each side radiates heat at 630W. At what wavelength, in mm, does its emission spectrum peak? Assumee=1

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The wavelengths in the hydrogen spectrum with m=1form a series of spectral lines called the Lyman series. Calculate the wavelengths of the first four members of the Lyman series.

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A newspaper delivery boy is riding his bicycle down the street at 5.0 m/s. He can throw a paper at a speed of 8.0 m/s. What is the paper’s speed relative to the ground if he throws the paper (a) forward, (b) backward, and (c) to the side?

Found on Page 1081

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Chapter 37: The Foundations of Modern Physics

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics

Answers without the blur.

130 Questions for Chapter 37: The Foundations of Modern Physics

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