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Newton's Law of Universal Gravitation and Orbits — Homework
State which law (gravitation or Kepler's third) applies before setting up each problem.
- 1.Satellite B orbits a planet at 9 times the radius of satellite A's orbit around the same planet. How many times longer is satellite B's period?
- 2.Find the gravitational force between two 500 kg masses separated by 5 m.
- 3.Find the gravitational force on a 90 kg person at Earth's surface using Newton's law of gravitation, and compare it to mg.
- 4.Explain why an orbiting astronaut is not actually "beyond" Earth's gravity, using the idea of continuous free fall.
- 5.Explain, in your own words, why Newton's law of gravitation was considered such a breakthrough -- what two previously separate ideas did it unify?
🌲 Homeschool of the FutureEleventh Grade · Science · week 21 homework