calculate the force of gravitation between the earth and the sun. mass of earth = 6×10^24 kg, mass of sun = 2×10^30 kg. average distance between the two is 1.5×10^11 m.
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Answer:
6.67×10-¹¹
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उदाहरण 67. 0.1 M Na2CO3 का 500 ml विलयन बनाने में उसके कितने ग्राम जल में घोलने होंगे?
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