Often in astronomy we compare objects. In this comparison, it is useful to know how the properties of the objects affect our observations. For the following hypotheti- cal changes in astronomical bodies answer whether the change would make the specified property L - Larger, S - Smaller, or N - Not changed. (If the first is L and the rest S, enter LSSSS).A) If the mass of the Sun were doubled and the Earth kept the same distance, the period of the Earth’s orbit would be .....B) If the distance between two planets is increased, the force of gravity between them is .....C) If the mass of an object dropped on the surface of Mercury were increased, the acceleration of the object would be ..... D) If the mass of Mars were greater (but its radius were the same), the acceleration due to gravity on its surface would be .....E) If the radius of the Earth were larger (but the mass were the same), the force of gravity on objects on its surface would be .....

Physics for Scientists and Engineers, Technology Update (No access codes included)
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Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter13: Universal Gravitation
Section: Chapter Questions
Problem 13.1CQ: Each Voyager spacecraft was accelerated toward escape speed from the Sun by the gravitational force...
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Often in astronomy we compare objects. In this comparison, it is useful to know how the properties of the objects affect our observations. For the following hypotheti- cal changes in astronomical bodies answer whether the change would make the specified property L - Larger, S - Smaller, or N - Not changed. (If the first is L and the rest S, enter LSSSS).
A) If the mass of the Sun were doubled and the Earth kept the same distance, the period of the Earth’s orbit would be .....
B) If the distance between two planets is increased, the force of gravity between them is .....
C) If the mass of an object dropped on the surface of Mercury were increased, the acceleration of the object would be ..... D) If the mass of Mars were greater (but its radius were the same), the acceleration due to gravity on its surface would be .....
E) If the radius of the Earth were larger (but the mass were the same), the force of gravity on objects on its surface would be .....

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