The Solar System
10th Edition
ISBN: 9781337672252
Author: The Solar System
Publisher: Cengage
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Chapter 5, Problem 3LL
Why is it a little bit misleading to say that this astronaut is weightless?
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A solid lead sphere of radius 10 m (about 66 feet across!) has a mass of about 57 million kg. If two of these spheres are floating right next to each other (centers 20 m apart) in deep space, the gravitational attraction between the spheres is only 540 N (about 100 pounds). How large would this gravitational force be if the distance between the centers of the two spheres were doubled?
Many people mistakenly believe that astronauts that orbit the Earth are "above gravity." Calculate the acceleration due to gravity (g) for space shuttle territory, 200 kilometers above the Earth's surface. Earth's mass is 6 x 1024 kilograms and its radius is 6.38 x 106 meters (6380 kilometers). Your answer is what percentage of 9.8m/s2?
(Can you help me break it down in a way that I could understand and calculate?)
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Chapter 5 Solutions
The Solar System
Ch. 5 - Prob. 1RQCh. 5 - Today, what do we call the Aristotelean violent...Ch. 5 - Which of Keplers or Newtons laws best describes...Ch. 5 - Prob. 4RQCh. 5 - Prob. 5RQCh. 5 - If you drop a feather and a steel hammer at the...Ch. 5 - What is the difference between mass and weight?
Ch. 5 - Prob. 8RQCh. 5 - An astronaut working in space near the...Ch. 5 - Prob. 10RQ
Ch. 5 - A car is on a circular off ramp of an interstate...Ch. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - An astronaut is in space with a baseball and a...Ch. 5 - Prob. 15RQCh. 5 - Prob. 16RQCh. 5 - Why did Newton conclude that some force had to...Ch. 5 - Why did Newton conclude that gravity has to be...Ch. 5 - Prob. 19RQCh. 5 - Prob. 20RQCh. 5 - Prob. 21RQCh. 5 - You are sitting next to a person who has twice as...Ch. 5 - Prob. 23RQCh. 5 - Why cant a spacecraft go beyond Earths gravity?Ch. 5 - Prob. 25RQCh. 5 - Balance a pencil lengthwise on the side of your...Ch. 5 - Prob. 27RQCh. 5 - Why can’t you leave Earth’s gravitational field...Ch. 5 - Prob. 29RQCh. 5 -
How do planets orbiting the Sun and skaters doing...Ch. 5 - Prob. 31RQCh. 5 - If you hold this textbook out at shoulder height...Ch. 5 - Today at the beach you see the highest of all high...Ch. 5 - Why is the period of an open orbit undefined?
Ch. 5 - In what conditions do Newtons laws of motion and...Ch. 5 - Prob. 36RQCh. 5 - Prob. 37RQCh. 5 - Prob. 38RQCh. 5 - How is gravity related to acceleration? Are all...Ch. 5 - Prob. 40RQCh. 5 - Prob. 41RQCh. 5 - Prob. 42RQCh. 5 - An astronomy textbook is to be dropped from a tall...Ch. 5 - Compared to the strength of Earth’s gravity at its...Ch. 5 - Compare the force of gravity on a 1 kg mass on the...Ch. 5 - Prob. 4PCh. 5 - Prob. 5PCh. 5 - If a small lead ball falls from a high tower on...Ch. 5 - What is the circular velocity of an Earth...Ch. 5 - What is the circular velocity of an Earth...Ch. 5 - Prob. 9PCh. 5 - Describe the shape of the orbit followed by the...Ch. 5 - Prob. 11PCh. 5 - What is the orbital period of a satellite orbiting...Ch. 5 - What would be the escape velocity at the surface...Ch. 5 - Prob. 14PCh. 5 - A moon of Jupiter takes 1.8 days to orbit at a...Ch. 5 - Prob. 1SPCh. 5 - Prob. 2SPCh. 5 - Prob. 1LLCh. 5 - Prob. 2LLCh. 5 - Why is it a little bit misleading to say that this...
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- Near a massive planet, is gravitational acceleration large or small? Is space strongly curved, or not? What about near a small marble?arrow_forwardWhy cant a spacecraft go beyond Earths gravity?arrow_forwardIt was stated that a satellite with negative total energy is in a bound orbit, whereas one with zero or positive total energy is in an unbounded orbit. Why zero or positive total energy is in an unbounded orbit. Why is this true? What choice for gravitational potential energy was made such that this is true?arrow_forward
- It is possible to experience weightlessness in a spacecraft flying through space in any set of circumstances, since you're always weightless in space, regardless of whether the engines are firing or not only when you're very far from any massive bodies like planets, moons, or stars only when you are drifting and the engines are shut off only when your are in a circular orbit around a planet, moon, or star If you tried to put on a spacesuit without first wearing an oxygen mask for a while, you would be in danger of carbon dioxide poisoning during your spacewalk quickly asphyxiate due to insufficient oxygen in your bloodstream overheat quickly due to insufficient air circulation in the suit experience considerable pain as the nitrogen in your blood forms bubblesarrow_forwardA satellite in orbit around the earth is at an altitude of 107 percent of the earth's radius. Rounding off our old friend "g" to ten meters per second squared, what is the acceleration due to earth's gravity at the satellite? Your answer should be in meters per second squared, but do not put the unit, just the number.arrow_forwardWe always launch vertically when leaving Earth because Question 25 options: it eliminates the need for a long takeoff runway it minimizes the acceleration experienced by the crew it's the best way to overcome gravity it minimizes the atmospheric dragarrow_forward
- m/s. About how long does Mercury take to orbit the sun once? 046. What is the gravitational attraction between a dating couple whose centers of mass are 0.630 m apart if the boy weighs 715 N and the girl weighs 465 N?arrow_forwardCompare the gravitational attraction between objects on earth and interaction of celestial bodies in space. Which gravitational force is almost negligible? Why? Discuss why the study of a gravitational field is important.arrow_forwardImagine that you are an astronaut on a newly discovered planet. You discover information that gives you the planet’s mass and radius. How could you confirm that the gravitational constant G is the same there as on Earth?arrow_forward
- You are completing a report for NASA on the mass and weight of various objects on different planets. What can you determine about the relationship between mass and gravity? What can you determine about the relationship between weight and gravity? Provide evidence to support your observations using the gravitational values below.Gravitational Values for Select Planets Mercury: 3.7 m/s ^ 2 Venus: 8.9 m/s ^ 2 Mars: 3.7 m/s ^ 2 Neptune: 11.0 m/s ^ 2arrow_forwardWhat is the gravitational force of attraction between two 800 kg spherical objects that are 5 m apart? What would the gravitational force of attraction between these two objects be if the distance between them waschanged to 10 m?arrow_forwardIn baseball, after a pitcher has released the ball, it will accelerate downward due to gravity. To compensate for this downward motion, the pitcher stands on a mound that is raised relative to the rest of the field. If you were to play baseball on the Moon, would you still need a mound? If so, how would its height compare to a mound on Earth?arrow_forward
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