Physical Science (12th Edition), Standalone Book
12th Edition
ISBN: 9781260150544
Author: Bill W. Tillery
Publisher: McGraw Hill Education
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Chapter 15, Problem 14PEB
To determine
The speed of the rock when falling from high cliff of the Earth’s moon.
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According to Lunar Laser Ranging experiment the average distance LM from the Earth to the Moon is approximately 3.92 x 105 km. The Moon orbits the
Earth and completes one revolution relative to the stars in approximately 27.5 days (a sidereal month).
Calculate the orbital velocity of the Moon in m/s.
Answer:
Choose...
According to Lunar Laser Ranging experiment the average distance LM from the Earth to the Moon is approximately 3.82 x 105 km. The Moon orbits the
Earth and completes one revolution relative to the stars in approximately 27.5 days (a sidereal month).
Calculate the orbital velocity of the Moon in m/s.
A small moon with a mass of 100 kg orbits a very dense asteroid with a mass of 1 million kg. The time for one complete orbit is 100 days. The small moon’s orbit radius is 500 metres.
a) Assuming that the orbit is perfectly circular, what is the speed of the small moon as it orbits the asteroid? State your result in scientific notation and in units of metres per second (m/s).
b) Are the small moon’s speed and velocity constant as it orbits the asteroid? Why or why not in both cases?
c) Calculate the centripetal force on the small moon as it orbits the asteroid (in newtons).
d) Calculate the gravitational force between the small moon and the asteroid (in newtons).e) Compare your results of part c) and part d).
Chapter 15 Solutions
Physical Science (12th Edition), Standalone Book
Ch. 15 -
1. The mass of the Sun is how much larger than...Ch. 15 -
2. The distance from Earth to the Sun is called a...Ch. 15 -
3. What type of planets are Mercury, Venus,...Ch. 15 -
4. Which of the following is most likely found on...Ch. 15 -
5. What is the outermost...Ch. 15 -
6. The planet that was named after the mythical...Ch. 15 -
7. A day on which planet is longer than a year on...Ch. 15 -
8. The day on which planet is about the same time...Ch. 15 -
9. Mars has distinct surface feature-related...Ch. 15 -
10. How many moons orbit...
Ch. 15 -
11. What is the largest planet in our solar...Ch. 15 -
12. Callisto, Europa, Ganymede, and Io...Ch. 15 -
13. The density of Jupiter is
a. 50 percent...Ch. 15 -
14. The only moon in the solar system with a...Ch. 15 -
15. Saturn’s rings are thought to be
a. composed...Ch. 15 -
16. The planet with the lowest average density,...Ch. 15 -
17. The planet that is not a giant...Ch. 15 - Prob. 18ACCh. 15 -
19. Area of the solar system where long-period...Ch. 15 -
20. Short-period comets have orbital periods...Ch. 15 -
21. Remnants of comets and asteroids found in...Ch. 15 -
22. Meteorites are classified into all of the...Ch. 15 -
23. The most widely accepted theory on the origin...Ch. 15 -
24. The belt of asteroids between Mars and...Ch. 15 -
25. Which of the following planets would be...Ch. 15 -
26. Which of the following planets probably still...Ch. 15 -
27. Venus appears the brightest when it is in...Ch. 15 -
28. The small body with a composition and...Ch. 15 -
29. A small body from space that falls on the...Ch. 15 -
30. Planets in our solar system are classified...Ch. 15 -
31. What separates the terrestrial planets from...Ch. 15 -
32. The planet that has the shortest “year” among...Ch. 15 -
33. What planet is called the morning star and...Ch. 15 -
34. Venus “shines” because it is
a. composed of...Ch. 15 -
35. On Venus, the sun rises in the west. This is...Ch. 15 -
36. The “sister” planet to Earth...Ch. 15 -
37. What feature on Mars was considered by some...Ch. 15 -
38. Jupiter radiates twice as much energy as it...Ch. 15 -
39. The Great Red Spot is thought to be
a. a...Ch. 15 -
40. The metallic hydrogen that surrounds the core...Ch. 15 -
41. A shooting star is a...Ch. 15 -
1. Describe the protoplanet nebular model of the...Ch. 15 -
2. What are the basic differences between the...Ch. 15 -
3. Describe the surface and atmospheric...Ch. 15 -
4. What evidence exists that Mars at one time had...Ch. 15 -
5. Describe the internal structure of Jupiter and...Ch. 15 -
6. What are the rings of Saturn?
Ch. 15 -
7. Describe some of the unusual features found on...Ch. 15 -
8. What are the similarities and the differences...Ch. 15 -
9. Give one idea about why the Great Red Spot...Ch. 15 -
10. What is so unusual about the motions and...Ch. 15 -
11. What evidence exists today that the number of...Ch. 15 -
12. Using the properties of the planets other...Ch. 15 -
13. What are “shooting stars”? Where do they come...Ch. 15 -
14. What is an asteroid? What evidence indicates...Ch. 15 -
15. Where do comets come from? Why are...Ch. 15 -
16. What is a meteor? What is the most likely...Ch. 15 -
17. What is a meteorite? What is the most likely...Ch. 15 -
18. Technically speaking, what is wrong with...Ch. 15 -
19. What are the primary differences between the...Ch. 15 -
1. What are the significant similarities and...Ch. 15 - Prob. 2FFACh. 15 -
3. Evaluate the statement that Venus is Earth's...Ch. 15 -
4. Describe the possibility and probability of...Ch. 15 -
5. Provide arguments that Pluto should be...Ch. 15 -
6. Explain why is it difficult to count the...Ch. 15 - Prob. 1IICh. 15 - Prob. 1PEACh. 15 - Prob. 2PEACh. 15 - Prob. 3PEACh. 15 - Prob. 4PEACh. 15 - Prob. 5PEACh. 15 - Prob. 6PEACh. 15 - Prob. 7PEACh. 15 - Prob. 8PEACh. 15 - Prob. 9PEACh. 15 - Prob. 10PEACh. 15 - Prob. 11PEACh. 15 - Prob. 12PEACh. 15 - Prob. 13PEACh. 15 - Prob. 14PEACh. 15 - Prob. 15PEACh. 15 -
1. Based on the density and diameter in km...Ch. 15 - Prob. 2PEBCh. 15 -
3. A scale model of the solar system is being...Ch. 15 -
4. How many times has Uranus rotated on its axis...Ch. 15 -
5. An elementary school class is building a scale...Ch. 15 -
6. A class is building scale models of the...Ch. 15 - Prob. 7PEBCh. 15 -
8. A 1 cm thick piece of lead with a surface area...Ch. 15 -
9. Assume an astronaut at a space station on Mars...Ch. 15 -
10. What is the mass of the Sun, in kilograms,...Ch. 15 -
11. What is the mass of the Sun, in kilograms,...Ch. 15 -
12. Based on Kepler’s third law, what is the...Ch. 15 -
13. Based on Kepler’s third law, what is the...Ch. 15 - Prob. 14PEBCh. 15 -
15. Assuming a circular orbit, what is the...
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- No. 2arrow_forwardAn object of mass mm is launched from a planet of mass MM and radius RR. a) Derive and enter an expression for the minimum launch speed needed for the object to escape gravity, i.e. to be able to just reach r=∞. b) Calculate this minimum launch speed (called the escape speed), in meters per second, for a planet of mass M=2.73×1023kg and R=86.2×103km.arrow_forwardConsider the Earth's orbit around the Sun to be circular with radius R = 9.30 x 107 mi and it takes 365 days to complete one revolution. What is the distance Earth traveled for one revolution (circumference of a circle is 2??2πR )?arrow_forward
- Mars has an orbital radius of 1.523 AU and an orbital period of 687.0 days. What is its average speed v in SI units? (1 AU is the astronomical unit, the mean distance between the Sun and the Earth, which is 1.496×1011 m) a. 0.00221 AU/day b. 3838 m/s c. 0 d. 1.28×10−9 m/sarrow_forwardAccording to Kepler's third law of planetary motion, the mean distance D, in millions of miles, from a planet in our solar system to the sun is related to the time P, in years, that it takes for the planet to complete a revolution around the sun, and the relationship is D = 93P 2/3. It takes the planet Pluto 248 years to complete a revolution around the sun. What is the mean distance from Pluto to the sun? What is the mean distance from Earth to the sun? Give your answers to the nearest million miles. from pluto to sun _____ million miles from earth to sun _____ million milesarrow_forwardLet the radius of the Earth be R, and we approximate the Earth as a sphere. In order for an object to glide along the equator of the Earth at sea level, what is the speed at which it needs to be moving? gR gR VgR O (gR)?arrow_forward
- Suppose a planet with a mass of 2.24 ✕ 1025 kg is orbiting a star with a mass of 3.55 ✕ 1031 kg, and the mean distance between the planet and the star is 1.62 ✕ 1012 m. Using Newton's law of universal gravity, determine the speed of the planet when it is at the mean distance from the star. m/sarrow_forwardAt an altitude of 160 km above the earth's surface, a 3-kg mass is pushed vertically upward with a velocity of 16,000 km/h. Using the radius of the earth equal to 6357 km, calculate the maximum distance from the earth's surface reached by the mass. Present your answer in km using 4 significant figures.arrow_forwardA rocket is designed to be launched to space with an acceleration defined by the equation given below where "y" is the altitude of the rocket in the time of flight and "R" is the radius of the earth equal to 6,400 kilometers. The rocket was launched at a velocity equal to 8,900 m/s. What is the maximum altitude reached by the rocket? Express your answer in unit of meter.arrow_forward
- Part A Comets travel around the sun in elliptical orbits with large eccentricities. If a comet has speed 2.1×104 m/s when at a distance of 2.6x1011 m from the center of the sun, what is its speed when at a distance of 4.0×1010 m. Express your answer in meters per second. Πνα ΑΣΦ m/sarrow_forwardPart A Comets travel around the sun in elliptical orbits with large eccentricities. If a comet has speed 2.1×104 m/s when at a distance of 2.6x1011 m from the center of the sun, what is its speed when at a distance of 4.0x1010 m. Express your answer in meters per second. νη ΑΣφ ? m/sarrow_forwardAn astronaut on earth can throw a ball straight up to a height of 15 m . How high can he throw the ball on Mars?arrow_forward
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