Essential University Physics (3rd Edition)
Essential University Physics (3rd Edition)
3rd Edition
ISBN: 9780134202709
Author: Richard Wolfson
Publisher: PEARSON
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Chapter 29, Problem 58P

Use appropriate data from Appendix E to calculate the radiation pressure on a light-absorbing object at the Sun’s surface.

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The intensity of sunlight reaching the earth is 1360 W/m2. Assuming all the sunlight is absorbed, what is the radiation-pressure force on the earth? Give your answer in newtons. Assuming all the sunlight is absorbed, what is the radiation-pressure force on the earth? Give your answer as a fraction of the sun's gravitational force on the earth.
The Earth reflects approximately 38.0% of the incident sunlight from its clouds and surface. (a) Given that the intensity of solar radiation is 1 340 W/m2, what is the radiation pressure on the Earth, in pascals, when the Sun is straight overhead? (b) Compare this to normal atmospheric pressure at the Earth’s surface, which is 101 kPa.
Interplanetary space contains many small particles referred to as interplanetary dust. Radiation pressure from the sun sets a lower limit on the size of such dust particles. To see the origin of this limit, consider a spherical dust particle of radius R and mass density r. (a) Write an expression for the gravitational force exerted on this particle by the sun (mass M) when the particle is a distance r from the sun. (b) Let L represent the luminosity of the sun, equal to the rate at which it emits energy in electromagnetic radiation. Find the force exerted on the (totally absorbing) particle due to solar radiation pressure, remembering that the intensity of the sun’s radiation also depends on the distance r. The relevant area is the cross-sectional area of the particle, not the total surface area of the particle. As part of your answer, explain why this is so. (c) The mass density of a typical interplanetary dust particle is about 3000 kg/m3 . Find the particle radius R such that the…

Chapter 29 Solutions

Essential University Physics (3rd Edition)

Ch. 29 - When astronomers observe a supernova explosion in...Ch. 29 - Turning a TV antenna so its rods point vertically...Ch. 29 - The Sun emits about half of its...Ch. 29 - An LC circuit is made entirely from...Ch. 29 - Prob. 10FTDCh. 29 - The intensity of light drops as the inverse square...Ch. 29 - Electromagnetic waves dont readily penetrate...Ch. 29 - Prob. 13ECh. 29 - Prob. 14ECh. 29 - The fields of an electromagnetic wave are E = Ep...Ch. 29 - A radio waves electric field is given by the...Ch. 29 - A light-minute is the distance light travels in 1...Ch. 29 - Your intercontinental telephone call is carried by...Ch. 29 - An airplanes radar altimeter works by bouncing...Ch. 29 - Roughly how long does it take light to travel 1...Ch. 29 - If you speak via radio from Earth to an astronaut...Ch. 29 - What are the wavelengths of (a) a 100-MHz FM radio...Ch. 29 - A 60-Hz power line emits electromagnetic...Ch. 29 - Microwave ovens for consumers use operate at 2.45...Ch. 29 - Prob. 25ECh. 29 - Prob. 26ECh. 29 - Vertically polarized light passes through a...Ch. 29 - Prob. 28ECh. 29 - Prob. 29ECh. 29 - Estimate the peak electric field inside a 1.1-kW...Ch. 29 - Prob. 31ECh. 29 - Prob. 32ECh. 29 - Your university radio station has a 5.0-kW radio...Ch. 29 - Prob. 34PCh. 29 - Youre engineering a new cell phone, and youd like...Ch. 29 - Prob. 36PCh. 29 - The medical profession divides the ultraviolet...Ch. 29 - Prob. 38PCh. 29 - Prob. 39PCh. 29 - A polarizer blocks 75% of a polarized light beam....Ch. 29 - Prob. 41PCh. 29 - Unpolarized light of intensity S0 passes first...Ch. 29 - Prob. 43PCh. 29 - Prob. 44PCh. 29 - High microwave intensities can cause biological...Ch. 29 - Use the fact that sunlight intensity at Earths...Ch. 29 - A quasar 10 billion light-years from Earth appears...Ch. 29 - Prob. 48PCh. 29 - Prob. 49PCh. 29 - Find the peak electric and magnetic fields 1.5 m...Ch. 29 - A typical fluorescent lamp is a little more than 1...Ch. 29 - Prob. 52PCh. 29 - A laser produces an average power of 7.0 W in a...Ch. 29 - Prob. 54PCh. 29 - A 65-kg astronaut is floating in empty space. If...Ch. 29 - Prob. 56PCh. 29 - A white dwarf star is approximately the size of...Ch. 29 - Use appropriate data from Appendix E to calculate...Ch. 29 - Prob. 59PCh. 29 - Prob. 60PCh. 29 - In a stack of polarizing sheets, each sheet has...Ch. 29 - Prob. 62PCh. 29 - Prob. 63PCh. 29 - Maxwells equations in a dielectric resemble those...Ch. 29 - Prob. 65PCh. 29 - Your roommates father is CEO of a coal company, so...Ch. 29 - The Voyager I spacecraft is now beyond the outer...Ch. 29 - Prob. 68PCh. 29 - Prob. 69PCh. 29 - The table below shows the intensity of the radio...Ch. 29 - If a sunlight-powered sailing spacecraft...Ch. 29 - Prob. 72PPCh. 29 - A sail capable of propelling a spacecraft to the...Ch. 29 - Prob. 74PP
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