PHYSICAL SCIENCE (LCPO)
12th Edition
ISBN: 9781265774660
Author: Tillery
Publisher: MCG
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Chapter 7, Problem 2PEB
To determine
The time required for reflected light to travel from Moon to Earth if the distance between Earth and Moon is
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(a) The distance to a star is approximately 4.97 × 10¹8 m. If this star were to burn out today, in how many years would we see it disappear?
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(b) How long does it take sunlight to reach Earth?
minutes
(c) How long does it take for a microwave radar signal to travel from Earth to the Moon and back? (The distance from Earth to the Moon is 3.84 x 105 km.)
S
The speed of light is c = 3.0 x 10^8 m/s. If the distance between the Earth and the moon is d = 2.39 x 10^5 mi (1.0 mi = 1.61 km). You send a laser from the Earth to the moon and back. How long does this take?
A) Suppose a star is 4.15 ✕ 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth from the surface of this star. How long (in years) would it take to reach Earth?
B) The Sun is 1.50 ✕ 1011 m from Earth. How long (in minutes) does it take sunlight to reach Earth?
C) The Moon is 3.84 ✕ 108 m from Earth. How long (in s) does it take for a radio transmission to travel from Earth to the Moon and back?
Chapter 7 Solutions
PHYSICAL SCIENCE (LCPO)
Ch. 7 - 1. Which of the following is luminous?
a. Moon
b....Ch. 7 - Prob. 2ACCh. 7 - Prob. 3ACCh. 7 - Prob. 4ACCh. 7 - 5. Light interacts with matter by which...Ch. 7 - Prob. 6ACCh. 7 - 7. Light is said to travel in straight-line paths,...Ch. 7 - 8. The image you see in a mirror is
a. a real...Ch. 7 - Prob. 9ACCh. 7 - Prob. 10AC
Ch. 7 - Prob. 11ACCh. 7 - 12. The component colors of sunlight were first...Ch. 7 - 13. The color order of longer-wavelength to...Ch. 7 - Prob. 14ACCh. 7 - 15. Polarization of light is best explained by...Ch. 7 - 16. Light in one plane is transmitted and light in...Ch. 7 - Prob. 17ACCh. 7 - Prob. 18ACCh. 7 - Prob. 19ACCh. 7 - Prob. 20ACCh. 7 - 21. Fiber optics transmits information using
a....Ch. 7 - 22. A luminous object
a. reflects a dim blue-green...Ch. 7 - Prob. 23ACCh. 7 - 24. The difference in the light emitted from a...Ch. 7 - Prob. 25ACCh. 7 - 26. An image that is not produced by light rays...Ch. 7 - Prob. 27ACCh. 7 - Prob. 28ACCh. 7 - 29. Which of the following can only be explained...Ch. 7 - 30. The polarization behavior of light is best...Ch. 7 - Prob. 31ACCh. 7 - Prob. 32ACCh. 7 - Prob. 33ACCh. 7 - Prob. 34ACCh. 7 - 35. The electromagnetic wave model defines an...Ch. 7 - 36. Of the following, the electromagnetic wave...Ch. 7 - 37. Of the following, the electromagnetic wave...Ch. 7 - Prob. 38ACCh. 7 - 39. Green grass absorbs
a. yellow light.
b. only...Ch. 7 - Prob. 40ACCh. 7 - Prob. 41ACCh. 7 - Prob. 42ACCh. 7 - Prob. 43ACCh. 7 - Prob. 44ACCh. 7 - 45. Polaroid sunglasses work best in eliminating...Ch. 7 - 46. The condition of farsightedness, or hyperopia,...Ch. 7 - Prob. 47ACCh. 7 - Prob. 48ACCh. 7 - 49. The special theory of relativity is
a. a new...Ch. 7 - Prob. 50ACCh. 7 - 51. Comparing measurements made on the ground to...Ch. 7 - 1. What determines if an electromagnetic wave...Ch. 7 - 2. What model of light does the polarization of...Ch. 7 - Prob. 3QFTCh. 7 - 4. What model of light is supported by the...Ch. 7 - Prob. 5QFTCh. 7 - Prob. 6QFTCh. 7 - 7. When does total internal reflection occur? Why...Ch. 7 - 8. Why does a highway sometimes appear wet on a...Ch. 7 - 9. How can you tell if a pair of sunglasses is...Ch. 7 - 10. What conditions are necessary for two light...Ch. 7 - 11. Explain why the intensity of reflected light...Ch. 7 - Prob. 12QFTCh. 7 - Prob. 13QFTCh. 7 - Prob. 14QFTCh. 7 - 1. Clarify the distinction between light...Ch. 7 - 2. Describe how you would use questions alone to...Ch. 7 - 3. Use a dialogue as you “think aloud."...Ch. 7 - 4. Compare and contrast the path of light through...Ch. 7 - 5. Analyze how the equation E = hf could mean that...Ch. 7 - 6. How are visible light and a radio wave...Ch. 7 - Prob. 1PEACh. 7 - Prob. 2PEACh. 7 - Prob. 3PEACh. 7 - Prob. 4PEACh. 7 - Prob. 5PEACh. 7 - Prob. 6PEACh. 7 - Prob. 7PEACh. 7 - Prob. 8PEACh. 7 - Prob. 9PEACh. 7 - Prob. 10PEACh. 7 - Prob. 11PEACh. 7 - Prob. 12PEACh. 7 - Prob. 13PEACh. 7 - Prob. 14PEACh. 7 - Prob. 15PEACh. 7 - Prob. 1PEBCh. 7 - Prob. 2PEBCh. 7 - 3. How many minutes are required for a radio...Ch. 7 - 4. An incident light ray strikes a mirror with an...Ch. 7 - 5. The speed of light through a transparent...Ch. 7 - Prob. 6PEBCh. 7 - Prob. 7PEBCh. 7 - 8. The wavelength of light from a monochromatic...Ch. 7 - Prob. 9PEBCh. 7 - 10. At what rate must electrons in a wire vibrate...Ch. 7 - Prob. 11PEBCh. 7 - Prob. 12PEBCh. 7 - Prob. 13PEBCh. 7 - Prob. 14PEBCh. 7 - Prob. 15PEB
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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
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- An astronomical unit (AU) is equal to the average distance from Earth to the Sun, about 92.9 × 106 mi. A parsec (pc) is the distance at which a length of 1 AU would subtend an angle of exactly 1 second of arc (the figure). A light-year (ly) is the distance that light, traveling through a vacuum with a speed of 186000 mi/s, would cover in 1.0 year. Express the Earth–Sun distance in (a) parsecs and (b) light-years.arrow_forwardHow long does it take light to travel three times around the circumference of Earth? The radius of Earth is 6371.0 km and the speed of light is 2.998×105 km s−1.arrow_forward(a) Suppose a star is 8.59 x 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth from the surface of this star. How long (in years) would it take to reach Earth? years (b) The Sun is 1.50 x 1011 m from Earth. How long (in minutes) does it take sunlight to reach Earth? minutes (c) The Moon is 3.84 x 108 m from Earth. How long (in s) does it take for a high-intensity laser beam to travel from Earth to the Moon and back?arrow_forward
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