Here (r,?) are plane polar coordinates, t is time, and ? is an independent varia

Question

Here (r,?) are plane polar coordinates, t is time, and ? is an independent variable parameter. Also, T = period of revolution, a = semimajor axis, and e = eccentricity. (A) Determine the Cartesian coordinates (x,y) and time t for the point P shown on the figure. (Express the answers in terms of a, e, T.) (B) Determine the Cartesian coordinates (x,y) and time t for the point R shown on the figure. (Express the answers in terms of a, e, T.) (C) Determine L/m where L is the angular momentum of the planet, and m is its mass. (Express the answer in terms of a, e, T.)

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