Question

Express the number appearing in the following statements in standard form .
(i) Mass of the earth is 5,976,000,000,000,000,000,000kg
(ii) Mass of planet Uranus is 86 , 800,000,000,000,000,000,000,000 kg

Answer 1

The Mass of Earth is—

5976000000000000000000000 kg

= 5.976 × 10 to the power 24 kg

For the second question pls refer to the attachment

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Answer 2

The nominative case (also called the "subjective case") is the main case. It is the version of the word for the subject of your sentence.