Question

12. Write in scientific notation:
(1) Earth's volume is about 1,083,000,000,000 cubic kilometres.
(ii) If you fill a bucket with dirt, the portion of the whole Earth that is in the bucket will be
0.0000000000000000000000016 kg.​

Answer 1

Writing the given numbers in scientific notation

(i) 1,083,000,000,000

• To convert the given number into scientific notation, it must be first written as 1,083,000,000,000.0
• The decimal place must be moved backward in such a way that it gets converted into 1.08
• Accordingly the decimal is moved backward to 12 position. Thus the scientific notation of the given number is $1.08\times10^{12}$.

(ii) 0.0000000000000000000000016

• To convert 0.0000000000000000000000016 as scientific notation, the place of the decimal must be moved forward.
• Accordingly when the decimal is moved 24 position forward, it becomes $1.6\times 10^{-24}$.

Learn more about such concept

D. Express the following sum to appropriate number of significant figures:

2.3x10 ml +4.22 X 10^4 mL +9.04*

10 ml +8.71*10^5​

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