Astronomy
1st Edition
ISBN: 9781938168284
Author: Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher: OpenStax
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 5, Problem 30E
With what type of
A. A star with a temperature of 5800 K?
B. A gas heated to a temperature of one million K?
C. A person on a dark night?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
A solar flare occurs in the surface of the sun on Monday morning at 11:45 AM. The sun is 1.496 x 108 kilometers
away and light travels at 300 000 km per second.
A. How long thereafter will the light beam reach the earth?
B. What time of the day will the beam of light reach occurred at 11:45?
C.
If the solar flare re occurred at 1:30 pm when will the light from the flare reach earth?
A. What is the energy of a 194.0MHz radio-frequency photon?
B. What is the energy of a visible-light photon with a wavelength of 611.0nm?
C. What is the energy of an x-ray photon with a wavelength of 0.236nm?
A 300-megawatt solar power plant requires approximately 950, 000m2 of land area in order to collect the required amount of energy from sunlight.a. If this land area is circular, what is its radius?b. If this land area is a 42◦ sector of a circle, what is its radius?
Chapter 5 Solutions
Astronomy
Ch. 5 - What distinguishes one type of electromagnetic...Ch. 5 - What is a wave? Use the terms wavelength and...Ch. 5 - Is your textbook the kind of idealized object...Ch. 5 - Where in an atom would you expect to find...Ch. 5 - Explain how emission lines and absorption lines...Ch. 5 - Explain how the Doppler effect works for sound...Ch. 5 - What kind of motion for a star does not produce a...Ch. 5 - Describe how Bohr’s model used the work of...Ch. 5 - Explain why light is referred to as...Ch. 5 - Explain the difference between radiation as it is...
Ch. 5 - What are the differences between light waves and...Ch. 5 - Which type of wave has a longer wavelength: AM...Ch. 5 - Explain why astronomers long ago believed that...Ch. 5 - Explain what the ionosphere is and how it...Ch. 5 - Which is more dangerous to living things, gamma...Ch. 5 - Explain why we have to observe stars and other...Ch. 5 - Explain why hotter objects tend to radiate more...Ch. 5 - Explain how we can deduce the temperature of a...Ch. 5 - Explain what dispersion is and how astronomers use...Ch. 5 - Explain why glass prisms disperse light.Ch. 5 - Explain what Joseph Fraunhofer discovered about...Ch. 5 - Explain how we use spectral absorption and...Ch. 5 - Explain the results of Rutherford’s gold foil...Ch. 5 - Is it possible for two different atoms of carbon...Ch. 5 - What are the three isotopes of hydrogen, and how...Ch. 5 - Explain how electrons use light energy to move...Ch. 5 - Explain why astronomers use the term “blueshifted”...Ch. 5 - If spectral line wavelengths are changing for...Ch. 5 - Make a list of some of the many practical...Ch. 5 - With what type of electromagnetic radiation would...Ch. 5 - Why is it dangerous to be exposed to X-rays but...Ch. 5 - Go outside on a clear night, wait 15 minutes for...Ch. 5 - Water faucets are often labeled with a red dot for...Ch. 5 - Suppose you are standing at the exact center of a...Ch. 5 - How could you measure Earth’s orbital speed by...Ch. 5 - Astronomers want to make maps of the sky showing...Ch. 5 - The greenhouse effect can be explained easily if...Ch. 5 - An idealized radiating object does not reflect or...Ch. 5 - Why are ionized gases typically only found in very...Ch. 5 - Explain why each element has a unique spectrum of...Ch. 5 - What is the wavelength of the carrier wave of a...Ch. 5 - What is the frequency of a red laser beam, with a...Ch. 5 - You go to a dance club to forget how hard your...Ch. 5 - What is the energy of the photon with the...Ch. 5 - If the emitted infrared radiation from Pluto, has...Ch. 5 - What is the temperature of a star whose maximum...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Find the center of mass of a sphere of mass M and radius R and a cylinder of mass in, radius r, and height h ar...
University Physics Volume 1
10. Use the first law of thermodynamics to devise a mathematical description of a process in which gas is being...
College Physics
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective (8th Edition)
10. A heavy solid disk rotating freely and slowed only by friction applied at its outer edge takes 100 seconds ...
College Physics (10th Edition)
Q17.19 A cold block of metal feels colder than a block of wood at the same temperature. Why? A hot block of met...
University Physics (14th Edition)
Choose the best answer to each of the following. Explain your reasoning. One week after full moon, the Moons ph...
The Cosmic Perspective Fundamentals (2nd Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A. 10x 10" B. 1.4x10" C. 2.7×10J D. 6.8x10"J 8. How much kinetic energy does an electron (m = 9.1x10 kg) have if it is traveling at one-half the speed of light?arrow_forward1. A carpenter builds an exterior house wall made of wood 3.0 cm thick. The wood has k = 0.080 W/mk. The interior temperature is 19°C and the exterior surface temperature is 9°C. What is the rate of heat flow per square meter through this wall? 2. What is the wavelength for the energy maximum of blackbody radiation at 30,000°F?arrow_forwardAn incoming light beam has frequency 9.7 x 1014 Hz. (Use h= 6.626 x 10-34 J.s) a. How much energy in Joules does it have?b. If the photons of this light beam are absorbed by a free electron, how much kinetic energy and speed will the free electron have?arrow_forward
- 1. An incoming light beam has frequency 9.7 x 1014 Hz. (Use h=6.626 x 10-34 J.s) a.) How much energy in Joules does it have? b.) If the photons of this light beam are absorbed by a free electron, how much kinetic energy and speed will the free electron have?arrow_forwardWhich of the following statements about a black body are true? Select one or more: a.The spectrum of the cosmic background radiation corresponds with great accuracy to the radiation of a black body at a temperature of 2.7 K. b.A black body absorbs all the radiation that hits it, and emits no radiation at all. c.According to Planck's radiation law (black body distribution), the wavelength corresponding to the maximum energy density of the radiation decreases (and the frequency increases) as the temperature increases. d.A black body reflects all the radiation that hits it, and absorbs no radiation at all.arrow_forwardWhich of the following statements about a black body are true? Select one or more: a. The spectrum of the cosmic background radiation corresponds with great accuracy to the radiation of a black body at a temperature of 2.7 K. b. A black body absorbs all the radiation that hits it, and emits no radiation at all. C. According to Planck's radiation law (black body distribution), the wavelength corresponding to the maximum energy density of the radiation decreases (and the frequency increases) as the temperature increases. d. A black body reflects all the radiation that hits it, and absorbs no radiation at all.arrow_forward
- A local radio station broadcasts radio waves at 99.7 MHz. Unlike sound, radio waves can pass into outer space, because they are disturbances not in air molecules but in the e-m fields that exist even in the vacuum of space. It's energy traveling independent of matter. a. When that radio wave hits you, how many pulses (wave crests) of em radiation hit you per minute (60 seconds)? (reminder: M = 10 6) b. Radio waves move at the speed of light (c), how far apart is each wave crest (wavelength)? c. If we boosted the signal strength so that station could be heard on the moon, would either the wavelength or frequency change?arrow_forwardThe surface temperature of the naked-eye star Capella (in constellation Auriga) is approximately 4,700 degrees Celsius.a) What is the peak frequency (in hertz) and wavelength (in metres AND nanometres) of Capella’s emitted light?b) If you were to look at Capella in the night sky, what colour would you expect it to appear? Why would you expect this colour?arrow_forwardFor the purpose of this exercise, we consider the Earth as a blackbody at a temperature of 300K. a. Assuming that it is spherical with a radius equals to 6370 km, calculate the total amount energy emitted by the Earth (Hint: The total amount of energy emitted by a surface = amount of energy emitted per unit area x area of the surface). b. What wavelength range would you recommend to measure radiation emitted by the Earth using a satellite mounted sensor?arrow_forward
- Electrons in an electron microscope are accelerated to 2.1 x 108m/s.a. Use the Newtonian formula to calculate the kinetic energy. By what factor does this understate the actual kinetic energy?b. What is the total energy of the electrons?arrow_forwarda. Does a hot, thin gas emit a continuous spectrum, a bright line spectra with gaps between the lines, or a dark line spectra with all frequencies except the missing (absorbed) one? b. Why do we see dark line spectra when we look at stars? c. Both hydrogen and helium glow and absorb red. Are they the same frequency of red? d. A hot solid iron plate and a hot solid aluminum plate are the same temperature. Do the give off the same range of frequencies?arrow_forwardWhich of the following are characteristic of ultraviolet radiation from a star? a. It will not penetrate Earth’s atmosphere and reach the ground. b. It has a wavelength that is longer than the visible light emitted by the star. c. It has a wavelength that is shorter than the X rays emitted by the star. d. a and b e. b and carrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- AstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStaxCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Time Dilation - Einstein's Theory Of Relativity Explained!; Author: Science ABC;https://www.youtube.com/watch?v=yuD34tEpRFw;License: Standard YouTube License, CC-BY