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calculating volume of mass and density prob?

carl1
in Mathematics

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hi all, can anyone please help. Im stuck on calculating the volume - If you had a mass of 1.028 x 10^26 kg and density of 1.61 x 10^3 kg m-3.

 

I have come up with what i think is the answer that is 0.63850931677m^3

 

If this is correct, then how do i write this answer to the appropriate number of significant figures.

 

Many thanks Carl1

What happened to your powers of ten?

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