Modified Mastering Astronomy with Pearson eText -- Standalone Access Card -- for Astronomy Today (9th Edition)
9th Edition
ISBN: 9780134553955
Author: Eric Chaisson, Steve McMillan
Publisher: PEARSON
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Chapter 1, Problem 2D
To determine
The comparison of the size of the Earth with that of the Sun, the Milky Way Galaxy, and the entire universe.
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1 million kilometers can be expressed in scientific notation as:
10x10^6 km
10x10^-6 km
none of these
1x10^6 km
1x10^-6km
Compare the values of the number of grains of sand in all earth’s beaches with the number of stars in the universe – which is greater?
Number of sand grains
Number of stars
They are about the same.
For thousands of years, many people thought earth was the center of the universe. Name one possibke reasons why they thought this.
Chapter 1 Solutions
Modified Mastering Astronomy with Pearson eText -- Standalone Access Card -- for Astronomy Today (9th Edition)
Ch. 1 - Prob. 1DCh. 1 - Prob. 2DCh. 1 - Prob. 3DCh. 1 - Prob. 4DCh. 1 - Prob. 5DCh. 1 - Prob. 6DCh. 1 - Prob. 7DCh. 1 - Prob. 8DCh. 1 - Prob. 9DCh. 1 - Prob. 10D
Ch. 1 - Prob. 11DCh. 1 - Prob. 12DCh. 1 - Prob. 13DCh. 1 - Prob. 14DCh. 1 - Prob. 15DCh. 1 - Prob. 1MCCh. 1 - Prob. 2MCCh. 1 - Prob. 3MCCh. 1 - Prob. 4MCCh. 1 - Prob. 5MCCh. 1 - Prob. 6MCCh. 1 - Prob. 7MCCh. 1 - Prob. 8MCCh. 1 - Prob. 9MCCh. 1 - Prob. 10MCCh. 1 - Prob. 1PCh. 1 - Prob. 2PCh. 1 - Prob. 3PCh. 1 - Prob. 4PCh. 1 - Prob. 5PCh. 1 - Prob. 6PCh. 1 - Prob. 7PCh. 1 - Prob. 9P
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- The time of the Cambrian explosion is listed on the second page of the Universe Bowl on the inside cover of the printed book. Express that time in scientific notation.arrow_forwardWhat is the difference between the Solar System, the Galaxy, and the Universe?arrow_forward(a) Astronomers use a special unit to measure distances called astronomical unit (AU) where 1 AU is defined as 92,955,807 miles. They also use another unit called parsecs where 1 parsec is equal to 206,264.4 AU. Convert 1 Zm (zettametre) into kiloparsecs. (Given 1 mi = 1.609 km; 1 km = 1000 m).arrow_forward
- The star that provides energy for life on earth is Moon Sun Milky Wayarrow_forwardAstronomers frequently say that “there are more stars in the universe than there are grains of sand on all the beaches on the earth”. Given that a typical grain of sand is about 0.5 – 1.0 mm in diameter, estimate the number of grains of sand on all the earth’s beaches. The diameter of the Earth is 12,742 km. About 1011 About 1016 About 1021.arrow_forwardHow far (in kilometers) will Honolulu move in 2000 years?arrow_forward
- which is greater 10 centimeters or 103 millmeters? How much greater?arrow_forwardwhat is the scientific concept used in the test? how old is the rock in years? scientist agree that the age of the universe is about 4 billion years old, does the age of the rock referred in the problem support that? why?arrow_forwardThe measured distance on the ground between two points is 6.85 km. If the corresponding distance between the same points on the map is 13.70 m, the scale of the map is O 1:50000 O 1:500000 O 1:5000 O 1:50 O 1:500arrow_forward
- An astronomical unit (AU) is defined as the average distance between the solar system and Alpha Centauri the Earth and the Moon the Milky Way Galaxy and the Andromeda Galaxy the Earth and the Sunarrow_forwardwhat is cosmos?arrow_forwardThe Drake Equation is a tool for estimating ... A) the number of alien civilizations that have visited the Earth in the past B) the number of planets in the Milky Way that contain civilizations intelligent enough to communicate through space. C) the number of habitable planets in the Milky Way where life has developedarrow_forward
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