physics discussion homework help

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  • One of your friends says that astronauts in orbit are weightless because they are beyond the pull of Earth’s gravity. Do you agree with your friend?
  • An astronaut lands on a planet that has the same mass at the Earth but twice the diameter. How would the weight of the astronaut differ from the weight on Earth?
  • If a piece of an airplane suddenly becomes detached during flight, it will crash to Earth. Would it happen the same to a piece of satellite in orbit?
  • When a satellite is placed into a higher orbit, what happens to its period?
  • What kind of orbit is the Space Station in? How long does it take to go around the Earth? Have you seen it travel by at night in the sky?
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