Physics for Science and Engineering With Modern Physics, VI - Student Study Guide

4th Edition

ISBN: 9780132273244

Author: Doug Giancoli

Publisher: PEARSON

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Textbook Question

Chapter 44, Problem 34P

(II) The scale factor or the universe (average distance between galaxies) at any given lime is believed to have been inversely proportional 10 the absolute temperature. Estimate the size of the universe, compared to today, at (a) t = 10⁶ yr, (b) t = 1 s, (c) t = 10⁻⁶ s, and (d) t = 10⁻³⁵ s.

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Chapter 44, Problem 33P

Chapter 44, Problem 35P

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[10] Using scientific notation, numerically evaluate the expression below. Do this problem without using a calculator. (8 x 10^6) (2 x 10^-3)

(III) The smallest meaningful measure of length is called the Planck length, and is defined in terms of three fundamental constants in nature: the speed of light c the gravitational constant G = 6.67 × 10-11 m³/kg•s², and Planck's constant h = 6.63 × 10-34 kg·m²/s. The Planck length {p is given by the following combination of these three constants: 3.00 × 10° m/s, Gh lp Show that the dimensions of lp are length [L], and find the order of magnitude of lp. [Recent theories (Chapters 32 and 33) suggest that the smallest particles (quarks, leptons) are “strings" with lengths on the order of the Planck length, 10-35 m. These theories also suggest that the “Big Bang," with which the universe is believed to have begun, started from an initial size on the order of the Planck length.]

For (b), why do we divide the (100Wx8h) by (103Wh)? I get that we need to cancel out the Wh, but why do we divide by 103 specifically?

Chapter 44 Solutions

Physics for Science and Engineering With Modern Physics, VI - Student Study Guide

Ch. 44.1 - Suppose we could place a huge mirror 1 light-year...Ch. 44.2 - Prob. 1BE Ch. 44.4 - What is the Schwarzschild radius for an object...Ch. 44.4 - A black hole has radius R. Its mass is...Ch. 44.9 - Prob. 1EE Ch. 44 - The Milky Way was once thought to be murky or...Ch. 44 - Prob. 2Q Ch. 44 - Prob. 3Q Ch. 44 - Prob. 4Q Ch. 44 - Prob. 5Q

Ch. 44 - Prob. 6Q Ch. 44 - Prob. 7Q Ch. 44 - Prob. 8Q Ch. 44 - Prob. 9Q Ch. 44 - Prob. 10Q Ch. 44 - Prob. 11Q Ch. 44 - Prob. 12Q Ch. 44 - Prob. 13Q Ch. 44 - Compare an explosion on Earth to the Big Bang....Ch. 44 - If nothing, not even light, escapes from a black...Ch. 44 - Prob. 16Q Ch. 44 - Prob. 17Q Ch. 44 - Explain what the 2.7-K cosmic microwave background...Ch. 44 - Prob. 19Q Ch. 44 - Prob. 20Q Ch. 44 - Prob. 21Q Ch. 44 - Under what circumstances would the universe...Ch. 44 - Prob. 23Q Ch. 44 - Prob. 24Q Ch. 44 - Prob. 1P Ch. 44 - Prob. 2P Ch. 44 - Prob. 3P Ch. 44 - Prob. 4P Ch. 44 - Prob. 5P Ch. 44 - Prob. 6P Ch. 44 - (II) What is the relative brightness of the Sun as...Ch. 44 - Prob. 8P Ch. 44 - Prob. 9P Ch. 44 - Prob. 10P Ch. 44 - Prob. 11P Ch. 44 - Prob. 12P Ch. 44 - Prob. 13P Ch. 44 - Prob. 14P Ch. 44 - Prob. 15P Ch. 44 - Prob. 16P Ch. 44 - Prob. 17P Ch. 44 - Prob. 18P Ch. 44 - Prob. 19P Ch. 44 - Prob. 20P Ch. 44 - Prob. 21P Ch. 44 - Prob. 22P Ch. 44 - Prob. 23P Ch. 44 - Prob. 24P Ch. 44 - Prob. 25P Ch. 44 - Prob. 26P Ch. 44 - Prob. 27P Ch. 44 - Prob. 28P Ch. 44 - Prob. 29P Ch. 44 - Prob. 30P Ch. 44 - Prob. 31P Ch. 44 - (II) Calculate the peak wavelength of the CMB at...Ch. 44 - Prob. 33P Ch. 44 - (II) The scale factor or the universe (average...Ch. 44 - Prob. 35P Ch. 44 - Prob. 36P Ch. 44 - Prob. 37GP Ch. 44 - Prob. 38GP Ch. 44 - Prob. 39GP Ch. 44 - Prob. 40GP Ch. 44 - Prob. 41GP Ch. 44 - Prob. 42GP Ch. 44 - Prob. 43GP Ch. 44 - Prob. 44GP Ch. 44 - Prob. 45GP Ch. 44 - Prob. 46GP Ch. 44 - Prob. 47GP Ch. 44 - Prob. 48GP Ch. 44 - Prob. 49GP Ch. 44 - Prob. 50GP Ch. 44 - Calculate the Schwarzschild radius using a...Ch. 44 - How large would the Sun be if its density equaled...Ch. 44 - Prob. 53GP Ch. 44 - (a) Use special relativity and Newtons law of...Ch. 44 - Prob. 55GP Ch. 44 - Prob. 56GP Ch. 44 - Prob. 57GP Ch. 44 - Prob. 58GP

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