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Solve the Problem r=a(1−e2)1+ecos⁡θ\mathrm { r } = \frac { \mathrm { a } \left( 1 - \mathrm { e } ^ { 2 } \right) } { 1 + \mathrm { e } \cos \theta }

Question 150

Multiple Choice

Solve the problem.
-Given that the polar equation r=a(1−e2) 1+ecos⁡θ\mathrm { r } = \frac { \mathrm { a } \left( 1 - \mathrm { e } ^ { 2 } \right) } { 1 + \mathrm { e } \cos \theta } models the orbits of the planets, estimate the smallest possible distance between Earth, for which a=1.00\mathrm { a } = 1.00 and e=0.017\mathrm { e } = 0.017 , and Venus, for which a=0.78\mathrm { a } = 0.78 and e=0.007\mathrm { e } = 0.007 .


A) Zero astronomical units
B) About 0.20.2 astronomical units
C) About 0.40.4 astronomical units
D) About 2 astronomical units

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