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The mass of the earth is 6 × 10 ²⁴ and that of the moon is 7.4 ×10²² . If the distance between the earth and the moon is 3.84 × 10 ⁵ kilometre. Calculate the force exerted by the earth on the moon. Take G = and

Posted by Shreya Agnihotri 1 year ago

CBSE > Class 09 > Science

2 answers

Parneet Sekhon 1 year ago

What is gravitation

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Kavyanjali Amrit 1 year ago

the mass ofhte earth , M = 6 × 10 24 kg the mass of the moon , m = 7.4 × 10 22 the distance between the earth and the moon, d = 3.84 × 10 5 k m = 3.84 × 10 5 × 1000 m = 3.84 × 10 8 m G = 6.7 × 10 − 11 N m 2 k g − 2 From Eq . (10.4) ,the force exerted by the earth on the moon is F = G M × m d 2 = 6.7 × 10 − 11 N m 2 k g − 2 × 6 × 10 24 k g × 7.4 × 10 22 k g ( 3.84 × 10 8 m ) 2 = 2.02 × 10 20 N. Thus the force exerted by the earth on the moon is 2.02 × 10 20 N.

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