Physical Universe
16th Edition
ISBN: 9781259664991
Author: KRAUSKOPF
Publisher: MCG
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Textbook Question
Chapter 1, Problem 13MC
According to Kepler’s third law, the time needed for a planet to complete an orbit around the sun
- a. is the same for all the planets
- b. depends on the planet’s size
- c. depends on the planet’s distance from the sun
- d. depends on how fast the planet spins on its axis
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The planet mercury travels around the Sun with a mean orbital radius of 5.8e10 m. The mass of the Sun is 1.99e30 kg. Use Newton's version of Kepler's third law to determine how long it takes Mercury to orbit the Sun. Give your answer in Earth days.
Which phrase or phrases about Kepler's laws of planetary motion are true?
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Use Kepler's third law, as modified by Newton, to calculate the mass of the Earth and Moon in units of the Sun's mass.
Chapter 1 Solutions
Physical Universe
Ch. 1 - The scientific method is a. continuing process b....Ch. 1 - A scientific law or theory is valid a. forever b....Ch. 1 - A hypothesis is a. a new scientific idea b. a...Ch. 1 - The ongoing evolution of living things a. is one...Ch. 1 - The object in the sky that apparently moves least...Ch. 1 - A constellation is a. an especially bright star b....Ch. 1 - Which of the following is no longer considered...Ch. 1 - A planet not visible to the naked eye is a. Mars...Ch. 1 - The planet closest to the sun is a. earth b. Venus...Ch. 1 - Prob. 10MC
Ch. 1 - Kepler modified the copernican system by showing...Ch. 1 - The speed of a planet in its orbit around the sun...Ch. 1 - According to Keplers third law, the time needed...Ch. 1 - The law of gravity a. applies only to large bodies...Ch. 1 - The earth bulges slightly at the equator and is...Ch. 1 - The usual tidal pattern in most parts of the world...Ch. 1 - Tides are caused a. only by the sun b. only by the...Ch. 1 - High tide occurs at a given place a. only when the...Ch. 1 - The prefix micro stands for a. 1/10 b. 1/100 c....Ch. 1 - A centimeter is a. 0.001 m b. 0.01 m c. 0.1 m d....Ch. 1 - Of the following, the shortest is a. 1 mm b. 0.01...Ch. 1 - Of the following, the longest is a. 1000 ft b. 500...Ch. 1 - A person is 180 cm tall. This is equivalent to a....Ch. 1 - The measurements of a room are given as length =...Ch. 1 - Prob. 1ECh. 1 - Prob. 2ECh. 1 - What is the difference between a hypothesis and a...Ch. 1 - Prob. 4ECh. 1 - According to the physicist Richard Feynman,...Ch. 1 - What does a year correspond to in terms of...Ch. 1 - You are lost in the northern hemisphere in the...Ch. 1 - In terms of what you would actually observe, what...Ch. 1 - What must be your location if the stars move...Ch. 1 - How do leap years fit into the ptolemaic system?...Ch. 1 - From observations of the moon, why would you...Ch. 1 - The sun, moon, and planets all follow...Ch. 1 - What is the basic difference between the ptolemaic...Ch. 1 - Ancient astronomers were troubled by variations in...Ch. 1 - Compare the ptolemaic and copernican explanations...Ch. 1 - What do you think is the reason scientists use an...Ch. 1 - The average distance from the earth to the sun is...Ch. 1 - As the earth revolves around the sun, some stars...Ch. 1 - Why is gravity considered a fundamental force...Ch. 1 - What, if anything, would happen to the shape of...Ch. 1 - What is the difference between spring and neap...Ch. 1 - The length of the day has varied. When did the...Ch. 1 - The earth takes almost exactly 24 h to make a...Ch. 1 - Does the sun or the moon have the greater...Ch. 1 - In the following pairs of length units, which is...Ch. 1 - A European driving from Paris to Brussels finds...Ch. 1 - The worlds tallest tree is a sequoia in California...Ch. 1 - The diameter of an atom is roughly 104 times the...Ch. 1 - How many square feet are there in an area of 1.00...Ch. 1 - A swimming pool is 20.00 m long, 7.00 m wide, and...Ch. 1 - The speedometer of a European car gives its speed...Ch. 1 - A horse galloped a mile in 2 min 35 s. What was...Ch. 1 - How many microphones are there in a megaphone?Ch. 1 - Use the proper number of significant figures to...Ch. 1 - Prob. 35E
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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
- A moon of Jupiter takes 1.8 days to orbit at a distance of 4.2 105 km from the center of the planet. What is the total mass of Jupiter plus this moon? (Note: One day is 86,400 seconds.)arrow_forwardWhich major planet has the largest . . . A. semimajor axis? B. average orbital speed around the Sun? C. orbital period around the Sun? D. eccentricity?arrow_forwardWhich of Keplers laws gives the most direct indication of the shape of the orbit of a planet? (16.1) (a) law of elliptical orbits (b) law of equal areas (c) harmonic lawarrow_forward
- If you lived on Mars, which planets would describe retrograde loops? Which would never be visible as crescent phases?arrow_forwardAccording to Kepler’s second law, where in a planet’s orbit would it be moving fastest? Where would it be moving slowest?arrow_forwardImagine you are a travel agent in the next century. An eccentric billionaire asks you to arrange a “Guinness Book of Solar System Records” kind of tour. Where would you direct him to find the following (use this chapter and Appendix F and Appendix G): A. the least-dense planet B. the densest planet C. the largest moon in the solar system D. excluding the jovian planets, the planet where you would weigh the most on its surface (Hint:Weight is directly proportional to surface gravity.) E. the smallest planet F. the planet that takes the longest time to rotate G. the planet that takes the shortest time to rotate H. the planet with a diameter closest to Earth’s I. the moon with the thickest atmosphere J. the densest moon K. the most massive moonarrow_forward
- What evidence can you cite that planets orbit other stars?arrow_forwardDescribe the shape of the orbit followed by the slowest cannonball in Figure 3 of the Concept Art, pretending that the cannonball could pass freely through Earth. (Newton got this problem wrong the first time he tried to solve it.)arrow_forwardKepler’s First Law states that planetary orbits are ellipses with thesun at one focus. The orbit of Pluto has eccentricity e ≈ 0.25. Its perihelion (closest distance to the sun) is approximately 2.7 billion miles.Find the aphelion (farthest distance from the sun).arrow_forward
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