Astronomy Today (9th Edition)
9th Edition
ISBN: 9780134450278
Author: Eric Chaisson, Steve McMillan
Publisher: PEARSON
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Chapter 2, Problem 5MC
To determine
The correct option, from the following options, for Kepler's law that will closely relate the calculation of how long it takes for a planet to orbit the Sun.
(a) First law of orbital shapes
(b) Second law of orbital speeds
(c) Third law of planetary distances
(d) First law of inertia
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Kepler's 1st law says that our Solar System's planets orbit in ellipses around the Sun where the closest distance to the Sun is called perihelion.
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Chapter 2 Solutions
Astronomy Today (9th Edition)
Ch. 2 - Prob. 1DCh. 2 - Prob. 2DCh. 2 - Prob. 3DCh. 2 - Prob. 4DCh. 2 - Prob. 5DCh. 2 - Prob. 6DCh. 2 - Prob. 7DCh. 2 - Prob. 8DCh. 2 - Prob. 9DCh. 2 - Prob. 10D
Ch. 2 - Prob. 11DCh. 2 - Prob. 12DCh. 2 - Prob. 13DCh. 2 - Prob. 14DCh. 2 - Prob. 15DCh. 2 - Prob. 1MCCh. 2 - Prob. 2MCCh. 2 - Prob. 3MCCh. 2 - Prob. 4MCCh. 2 - Prob. 5MCCh. 2 - Prob. 6MCCh. 2 - Prob. 7MCCh. 2 - Prob. 8MCCh. 2 - Prob. 9MCCh. 2 - Prob. 10MCCh. 2 - Prob. 1PCh. 2 - Prob. 2PCh. 2 - Prob. 3PCh. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - Prob. 6PCh. 2 - Prob. 7PCh. 2 - Prob. 8P
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- Can a good scientific theory be good without much researched details and facts? If yes, can you give an example. If not, why not? -Please & Thank youarrow_forwardWhy did Kepler need Tycho Brahe’s data to formulate his laws?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_forward
- Relate Kepler’s third law of planetary motion to Newton’s law of gravitation and centripetal acceleration.arrow_forwardAs an aspiring science fiction author, you are writing about a space-faring race and their home planet, Krypton, which has one moon. This moon takes 1,702,948 seconds to complete an orbit around Krypton. If the distance from the center of the moon to the surface of Krypton is 462.5 x 106 m and the planet has a radius of 37.2 x 106 m, calculate the moon's centripetal acceleration. Your Answer: Answerarrow_forwardShow mathematically how Kepler’s third law can be derived from Newton’s law of universal gravitation. Hint: use the centripetal force (force directed towards the center) which is equal to the gravitational force in orbital motion.arrow_forward
- What is the most significant difference between a law and a theory? For how long are scientific laws and theories valid? Why does classical physics seem more intuitive to us than modern physics does?arrow_forwardDescribe Kepler’s First Law of Planetary Motion.arrow_forwardHow will you deduce Kepler's third law from Newton's law of gravitation.arrow_forward
- Discuss the Universe in Galileo's eyes. What are the contributions he did that caused significant changes the way we view universe? Do it for at least 10 sentences.arrow_forwardChoose the BEST answer to the following:Somebody who says, “that’s only a theory” likely doesn’t know that a scientific theory is (a) an educated guess. (b) a hypothesis. (c) a vast synthesis of well-tested hypotheses and facts. (d) None of these.arrow_forwardCalculate the angle a person needs to lean from the vertical when 1. walking a 14 m (radius) circular track at 22 mins per mile, and Enter to 2 significant figures Angle with respect to the vertical = = 0.85 ! No, that's not the correct answer. O 2. running at 4 min per mile. Enter to 2 significant figures Angle with respect to the vertical = 6.8 Use 1 mile = 1609.4 m Sense-making: Do your results for the leaning angle during walking agree with your observations about people walking on circular tracks? Oarrow_forward
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