1. The Earth’s masaafada from the Sun is 149.6 x 106 km and period of Earth’s revolution is 1 year. Calculate T2 /r3
La yaqaan:
T = 1 year, r = 149.6 x 106 km
rabay :T2 /r3 = …?
Solution :
k = T2 /r3 = 12 / (149.6 x 106)3 = 1 / (3348071.9 x 1018) = 2.98 x 10-25 sanadkii2/ km3
2. Joogtada guud (G) = 6.67 x 10-11 Nm2/ kg2 and Sun’s 1.99 x 1030 kg.
3. The mean distance of Earth from the Sun is 149.6 x 106 km and the mean distance of Mercury from the Sun is 57.9 x 106 km. The period of Earth’s revolutions is 1 year, what is the period of Mercury’s revolution?
La yaqaan:
r of Earth = 149.6 x 106 km
r of mercury = 57.9 x 106 km
T of Earth = 1 year
SE buska: T of mercury?
Xalka:
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