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Units and Measurement
Question
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Explain the motion of the earth-moon system around the sun using centre of mass concept.

Answer

The Earth-moon system forms a binary system. Both the Earth and the moon revolve in circles about the common centre of mass. The centre of mass of the earth-moon system revolves around the sun in an elliptical path around the sun.

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Some More Questions From Units and Measurement Chapter

Does the numerical factor in the quantitative measurement depend on the system of unit used?

Is one unit sufficient to measure a physical quantity?

Can a physical quantity have two or more units? Give example.

What are fundamental quantities?

How many fundamental quantities are there in mechanics?

How many fundamental quantities are there in Physics?

Name the fundamental quantities of mechanics.

Name the different system of units in mechanics that are internationally accepted.