ESSENTIAL COSMIC PERS.-W/MASTER.ACCESS
9th Edition
ISBN: 9780135795750
Author: Bennett
Publisher: PEARSON
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Chapter 1, Problem 15EAP
Decide whether the statement makes sense (or is clearly true) or does not make sense (or is clearly false). Explain clearly, not all of these have definitive answers, so your explanation is more important than your chosen answer.
16. It will take me light-years to complete this homework assignment!
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Students have asked these similar questions
Part I. We will leam in this class that the distance from the Earth to the Sun is approximately 1AU =
150,000,000 kilometers.
a. Convert this number to meters (1 kilometer = 10° meters) and express it using scientific notation:
150000000000
meters
How else might you express this number? (Millions, billions, etc. ?)
b. A car on the highway drives at 55 mph = 25 meters per second. How long would it take to drive to
the Sun? (Assuming you have a car that works in outer space.)
Use the equation distance = velocity x time, or time = distance / velocity.
Time = distance/velocity = ,
seconds (don't forget to use scientific notation.)
How many days?.
_days
How many years?.
years
Does the answer surprise you?
discussion of elementary particle physics?
PET a good exam-
ple
2. Describe the two fundamental postulates underlying Einstein's
special theory of relativity.
3. Suppose you were traveling toward the Sun at a constant velocity of
0.25c. With what speed does the light streaming out from the Sun go
past you? Explain your reasoning.
4. Light travels in water at a speed of 2.25 X 108 m/s. Is it possible for
particles to travel through water at a speed v>2.25 × 108 m/s?
Why or why not? Explain.
5. In your own words, define what is meant by time dilation in spe-
cial relativity theory. Provide a similar definition for length contrac-
tion. Give an example in which the effects of time dilation are actu-
ally observed.
15
16
17
1:
19
2
Hi, please show full solutions and also explain how you get the answers in physics term so it's understandable. The correct final answers are written beside too. This is one whole question to be answered. I can't post it separately since it's related. Thank you.
2. An astronaut in a spacecraft leaves Earth at a speed of 0.90c and travels 27 light-years away, both measured by an Earth-based observer. Hint: One light-year is the distance light travels in one year.
a) How long will the journey take in years, as measured by the Earth-based observer? (30 years)b) How many years will have passed for the astronaut during the journey? (13 years)c) What distance will the astronaut measure the journey to be? (12 ly or 1.1 x 1017 m)
Chapter 1 Solutions
ESSENTIAL COSMIC PERS.-W/MASTER.ACCESS
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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Time Dilation - Einstein's Theory Of Relativity Explained!; Author: Science ABC;https://www.youtube.com/watch?v=yuD34tEpRFw;License: Standard YouTube License, CC-BY