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**Unformatted text preview: **geosynchronous, that is, its orbital period must be 24 hours so that the satellite is always visible from both ground stations. What is the radius of such an orbit? Checkpoint 1 c) How much energy must be expended to boost the satellite from low-Earth to geosynchronous orbit? Checkpoint 2 Problem 2. Consider the following energy graphs of two particles that start out far apart, moving toward each other (that is, their initial velocities are nonzero and they are heading straight at each other) a) Which of these diagrams corresponds to a system of two electrons that start out far apart, moving toward each other? Explain why you chose the one you did. b) Which of the diagrams corresponds to a system of a proton and an electron that start out far apart, moving towards each other? Explain why you chose the one you did. Checkpoint 3...

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