Question
The ratio of earth’s orbital angular momentum (about the sun) to its mass is 4.4 × 1015 m2/s. The area enclosed by earth’s orbit is approximately
- 7 × 1022 m2
- 6.02 × 1023 m2
- 7 × 1023 m2
- none of these
The correct answer is: 7 × 1022 m2
= 4.4 ´ 1015Þ = 4.4 ´ 1015
Þ r = 4.4 ´ 1015
Þ p r2 = 6.938 ´ 1022 m2.
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