In the packet on gravity I handed out last week:
1) Review Example Problem 1 (on page 174), also review the work we did together last Monday to calculate the length of the martian year. Do Practice Problems 2 and 4 (also on page 174).
2) On Wednesday we used Newton's Law of universal gravitation to determine the exact value of the constant in Kepler's third law. (This same calculation is performed on page 176 of your packet). You can take this calculation a few steps further to get a formula for determining the period of a planet orbiting the sun. This formula is derived and listed on page 176 of you packet. Use it to do problem problem 6 in the 7.1 Section Review on page 178.
See you Wednesday.
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