ESSMENT 11. Earth's mass is far larger than either of the lead spheres used in Cavendish's experiment to measure the universal gravitational constant. Why does this experiment work?
ESSMENT 11. Earth's mass is far larger than either of the lead spheres used in Cavendish's experiment to measure the universal gravitational constant. Why does this experiment work?
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Transcribed Image Text:CHAPTER 7 CHAPTER ASSESSME
11. Earth's mass is far larger than either of the lead spheres used in Cavendish's experiment to
measure the universal gravitational constant. Why does this experiment work?
12. Why was Cavendish's experiment important?
13. Explain how the general theory of relativity improves upon Newton's ideas about gravity.
Applying Physics Knowledge
Answer the following questions.
Name
1. A new planet is discovered and found to have a circular orbit. How is this planet's gravitational
interaction with the Sun different from that of Earth's?
Gm
If Earth is closer
r
2. Recall that a satellite's speed is calculated using the formula V =
to the Sun in December than it is in July, in which month is Earth moving faster and why?
Chapter 7 Gravitation
5
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