21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 5, Problem 1QP
To determine
The change that happens on the Earth when the Sun instaneously stopped giving off light.
Expert Solution & Answer
Answer to Problem 1QP
Option (b) is the correct answer.
Explanation of Solution
The time taken by sunlight to reach the Earth is,
The distance between the earth and the Sun is
Then the time taken is,
Conclusion:
Since the time taken is
Since the time taken for the sunlight to reach the Earth is
Since the time taken for the sunlight to reach the Earth is
Since the time taken for the sunlight to reach the Earth is
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
A star that is moving toward Earth will
a.
have its spectral lines shifted to the red.
b.
have its spectral lines shifted to the blue.
c.
appear hotter than it actually is.
d.
appear cooler than it actually is.
e.
appear dimmer than it actually is.
Because of the precession of the Earth’s axis,
a.
there are four seasons, spring, summer, fall, and winter.
b.
the Earth receives more solar radiation in the summer than in the winter.
c.
Polaris will not be the North Star in about 12,000 years.
d.
the lengths of the Earth’s days and nights vary throughout the year.
An astronomical unit
a.is the average distance from the Earth to the Sun.
b.is about 150 million kilometres.
c.is measured using radar signals bouncing off Venus.
d.has units of distance.
e.all of the mentioned choices.
Galileo made many discoveries. Which one of these is not attributed to him?
a.that the Moon has mountains, valleys and craters
b.that the Sun has imperfections known as sunspots
c.that four small points of light orbit the planet Jupiter
d.the invention of the telescope
e.that Venus shows a complete cycle of phases
Which one of these statements describes why the planet Venus is much warmer than Earth?
a.Venus has a denser and deeper atmosphere.
b.It is closer to the Sun than Earth.
c.It experienced a 'runaway greenhouse effect' long ago.
d.It produces more carbon dioxide than is absorbed by the surface.
e.all of the mentioned statements
Chapter 5 Solutions
21st Century Astronomy
Ch. 5.1 - Prob. 5.1ACYUCh. 5.1 - Prob. 5.1BCYUCh. 5.2 - Prob. 5.2CYUCh. 5.3 - Prob. 5.3CYUCh. 5.4 - Prob. 5.4CYUCh. 5.5 - Prob. 5.5CYUCh. 5 - Prob. 1QPCh. 5 - Prob. 2QPCh. 5 - Prob. 3QPCh. 5 - Prob. 4QP
Ch. 5 - Prob. 5QPCh. 5 - Prob. 6QPCh. 5 - Prob. 7QPCh. 5 - Prob. 8QPCh. 5 - Prob. 9QPCh. 5 - Prob. 10QPCh. 5 - Prob. 11QPCh. 5 - Prob. 12QPCh. 5 - Prob. 13QPCh. 5 - Prob. 14QPCh. 5 - Prob. 15QPCh. 5 - Prob. 16QPCh. 5 - Prob. 17QPCh. 5 - Prob. 18QPCh. 5 - Prob. 19QPCh. 5 - Prob. 20QPCh. 5 - Prob. 21QPCh. 5 - Prob. 22QPCh. 5 - Prob. 23QPCh. 5 - Prob. 24QPCh. 5 - Prob. 25QPCh. 5 - Prob. 26QPCh. 5 - Prob. 27QPCh. 5 - Prob. 28QPCh. 5 - Prob. 29QPCh. 5 - Prob. 30QPCh. 5 - Prob. 31QPCh. 5 - Prob. 32QPCh. 5 - Prob. 33QPCh. 5 - Prob. 34QPCh. 5 - Prob. 35QPCh. 5 - Prob. 36QPCh. 5 - Prob. 37QPCh. 5 - Prob. 38QPCh. 5 - Prob. 39QPCh. 5 - Prob. 40QPCh. 5 - Prob. 41QPCh. 5 - Prob. 42QPCh. 5 - Prob. 43QPCh. 5 - Prob. 44QPCh. 5 - Prob. 45QP
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
- 3. What will happen if: a. the object travels closer to the speed of light? b. the object travels at the speed of light? c. the object travels faster than the speed of light?arrow_forwardI II E C F(O Compare D and E for brightness A. D>E B. E>D C. D=Earrow_forwardIf you live at a location on the Earth’s northern hemisphere, when will the longest day of the year be? a.vernal equinox b.winter solstice c.summer equinox d.summer solstice e.winter equinox The history of the universe described by the Big Bang theory is separated into different eras. During which era was the predominant temperature of the Universe about 1 million Kelvin? a.The Plank Era b.The GUT Era c.The Electroweak Era d.The Era of Nuclei e.The Era of Atoms Some planets have very strong magnetic fields. What features must a planet have to cause this? a.both rapid rotation and a conducting liquid core b.only a rapid rotation c.only a liquid conducting core d.both a rapid rotation and a solid metallic core e.only a metallic corearrow_forward
- 23. Which of the following best describes the sentence, “Simultaneity is not absolute.”? a. The laws of physics may be different in different inertial frames of reference. b. Events may appear simultaneous in all frames of reference. c. Events may not appear simultaneous in all frames of reference. .d.The speed of light is not the same in all frames of reference.arrow_forwardLight from the Sun reaches us in nearly A. 2 minutes B. 4 minutes C. 8 minutes D. 16 minutesarrow_forward18. According to the General Theory of Relativity, what will happen to the light of a star located behind the sun when it travels towards an observer on earth?rocks? * O A. The light from the star will be reflected away from earth. O B. The sun will block the light beam and will not reach earth. O C. The light of the star will add up to the brightness of the sun. O D. The gravity of the sun will slight|ly bend the passing light from the star.arrow_forward
- Consider the light of multiple candle flames, each of the same brightness. Rank from brightest to dimmest the light that enters your eye for the following situations. a. 3 candles seen from a distance of 3 m. b. 2 candles seen from a distance of 2 m. c. 1 candle seen from a distance of 1 m.arrow_forwardA helium flash a. is sudden and powerful. b. destroys the star. c. is a slow expulsion of helium gas. d. occurs in very low mass stars.arrow_forwardAstronomers use a light-year to measure distance. A light-year is the distance light travels in one year. The speed of light is approximately 300,000 km/sec.a. How long is 1 light-year in kilometers?b. The nearest star (other than the sun) is Alpha Centauri. It is 4.34 light-years from Earth. How far is that in kilometers?c. How long will it take a rocket traveling 42,000 km/hr to reach Alpha Centauri?arrow_forward
- Which statement describes the sun's position relative to planetary orbits? A. The sun is at the center of each planet's circular orbit. B. The sun is midway between the foci of each planet's elliptical orbit. C. The sun is one focus of each planet's elliptical orbit. D. The sun alternates between the two foci of planetary orbits.arrow_forward2. During a sunrise, the Sun appears to "rise up" from the horizon. Why does this happen? A. Earth is spinning on its axis. B. The Sun is circling around Earth C. The Sun is moving closer to Earth. D. Earth is revolving around the Sun. Explanation:arrow_forwardSpeed = distance / time. The letter "c" is used to represent the speed of light. c = d / t Assuming that the difference in the light travel time between the two dates was 7.6 minutes and that 1.00 AU = 150,000,000 km determine the speed of light. a. 299,000,000 km/s b. 299,000,000 m/s c. 299,000 AU/minute d. 299 AU/sarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- AstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStaxAn Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage LearningHorizons: Exploring the Universe (MindTap Course ...PhysicsISBN:9781305960961Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning
Horizons: Exploring the Universe (MindTap Course ...
Physics
ISBN:9781305960961
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
General Relativity: The Curvature of Spacetime; Author: Professor Dave Explains;https://www.youtube.com/watch?v=R7V3koyL7Mc;License: Standard YouTube License, CC-BY