Practice Quiz

AP Physics B Practice Exam

Category - Introductory Physics

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The distance of the star Vega from Earth is 1.6 million times greater than the distance of the Sun from Earth. Which of the following best describes the gravitational influence of Vega on Earth?
  1. It is roughly equal to that of the Sun.
  2. Its influence is greater than that of the Sun.
  3. Its influence is small because of its distance.
  4. It influences the magnitude of Earth’s mass.
Explanation
Answer: C - Its influence is small because of its distance.
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