Essential Cosmic Perspective
9th Edition
ISBN: 9780135795033
Author: Bennett
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 45EAP
Moonlight and Sunlight. How long does it take light to travel from
a. the Moon to Earth?
b. the Sun to Earth?
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11. How far does light travel in 5 nanoseconds? Express your answer in feet. Assume the travels in a
vacuum where its speed is 186,000 miles per second.
1 foot
5 feet
C.
29.7 feet
d. 186,000 feet
a.
b.
An apple is green because it
O a. emits green light.
O b. absorbs green light.
O c. transmits green light.
O d. reflects green light.
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a. traveling through space in an accelerating rocket
O b. None of the above
Oc. jumping from an airplane with your parachute open
O d. walking on the Moon
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立
A. What is a light year?
unit of time.
unit of length
1 year on earth
speed of light.
Chapter 1 Solutions
Essential Cosmic Perspective
Ch. 1 - Prob. 1VSCCh. 1 - Prob. 2VSCCh. 1 - About how far away from Earth would the Sun be...Ch. 1 - Prob. 4VSCCh. 1 - Prob. 1EAPCh. 1 - Define astronomical unit and light-year.Ch. 1 - Explain the statement The farther away we look in...Ch. 1 - Prob. 4EAPCh. 1 - Prob. 5EAPCh. 1 - What do we mean when we say that the universe is...
Ch. 1 - In what sense are we “star stuff”?Ch. 1 - Use the cosmic calendar to describe how the human...Ch. 1 - Briefly explain Earth’s daily rotation and annual...Ch. 1 - Prob. 10EAPCh. 1 - Prob. 11EAPCh. 1 - Prob. 12EAPCh. 1 - Prob. 13EAPCh. 1 - Prob. 14EAPCh. 1 - Decide whether the statement makes sense (or is...Ch. 1 - Prob. 16EAPCh. 1 - Prob. 17EAPCh. 1 - Prob. 18EAPCh. 1 - Decide whether the statement makes sense (or is...Ch. 1 - Prob. 20EAPCh. 1 - Decide whether the statement makes sense (or is...Ch. 1 - Prob. 22EAPCh. 1 - Prob. 23EAPCh. 1 - An astronomical unit is (a) any planet’s average...Ch. 1 - The star Betelgeuse s about 600 light-years away....Ch. 1 - Prob. 26EAPCh. 1 - Prob. 27EAPCh. 1 - Prob. 28EAPCh. 1 - Prob. 29EAPCh. 1 - Prob. 30EAPCh. 1 - Prob. 31EAPCh. 1 - Prob. 32EAPCh. 1 - Prob. 34EAPCh. 1 - Thinking About Scale. One key to success m science...Ch. 1 - Prob. 36EAPCh. 1 - A Human Adventure. Astronomical discoveries...Ch. 1 - Prob. 38EAPCh. 1 - Group Activity: Counting the Milky Way’s Stars....Ch. 1 - Prob. 40EAPCh. 1 - Prob. 41EAPCh. 1 - Prob. 42EAPCh. 1 - Prob. 43EAPCh. 1 - Prob. 44EAPCh. 1 - Moonlight and Sunlight. How long does it take...Ch. 1 - Prob. 46EAPCh. 1 - Driving Trips. Imagine that you could drive your...Ch. 1 - Prob. 48EAPCh. 1 - Prob. 49EAPCh. 1 - Age of the Universe. Suppose we did not yet know...
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- When two objects are far away, an observer moving will see a shift of the closest object relative to the farthest object. This shift is known as a.triangulation. b.parallax. c.a baseline. d.a degree. e.an arc second. What advantages do large telescopes have over smaller ones? a.larger collecting areas b.both superior angular resolution and less aberration c.superior angular resolution d.less aberration e.better exposure times What is the name given to a day which uses the stars as a reference? a.solar day b.diurnal day c.sidereal day d.orbital day e.none of the mentioned choicesarrow_forward1. The sun is approximately 1.5x1011m from the Earth. About how long does it take for sunlight to travel through space to illuminate our planet? A. 11 minutes B. 4 minutes C. 8 minutes D. 2 minutesarrow_forwardLight from the Sun reaches us in nearly A. 2 minutes B. 4 minutes C. 8 minutes D. 16 minutesarrow_forward
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- The wavelengths of visible light range from approximately 400 nanometers to 750 nanometers.a. Convert the 750nm to meters.b. Convert the 400nm to meters.c. Calculate the frequency of red light.d. Calculate the frequency of violet light.arrow_forwardWhich of the following explain why far infrared astronomy must be done from high-flying aircraft? a. Far infrared radiation is absorbed low in Earth’s atmosphere. b. Far infrared photons are quite energetic. c. Far infrared telescopes are not very heavy. d. Far infrared sources are very bright. e. None of the above are correct.arrow_forwardWhat happens to the speed of light as it goes from air to water ? 2. What happens to the frequency of light as it goes from air to water? 3. What happens to the wavelength of light as it goes from air to water? Enter your hypothesis here.arrow_forward
- 1.Convert a density of 2.79 g/cm3 to kg/cm3 2. One light year is the distance traveled by light in a year. Convert one light year to meter using 3x108m/s for the speed of light. (Hint; d=vt) 3.A density of 5400 kg/m3 is equal to g/cm3 4. Which statement is true? a. PRECISE MEASUUREMENTS ARE ACCURATE b.ACCURATE MEASUREMENTS ARE PRECISE c.PRECISE MEASUREMNETS CAN BE INACCURATE d.INACCURATE MEASUREMENTS CANNOT BE PRECISE 5.the components of vector Q are given as follow: Qx=23.5m Qy=18.6m a.38.40 b. 47.90 c.56.30 d. 620arrow_forward3. 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_forwardOne of the disadvantages of a radio telescope compared to a reflecting optical telescope is its inability to a. reveal finer detail. b. detect cool hydrogen. c. see through interstellar dust. d. see some of the most distant objects in the universe.arrow_forward
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