The mass of the earth is 5.98x10^24 kg and its radius is 6.38x10^6 m. Compute the density of the earth, using the power of 10 notations and the correct number of significant figures.
The mass of the earth is 5.98x10^24 kg and its radius is 6.38x10^6 m. Compute the density of the earth, using the power of 10 notations and the correct number of significant figures.
V=43π∗r3V=43π∗(6.38∗106)3V=43π∗6.383∗1018Density=MassVolumeDensity=5.98∗102443π∗6.383∗1018Kg/m3Density=3∗5.98∗1064π∗6.383Kg/m3
(3×5.98)(4×π×6.383)=0.0054973139299626
Density=3∗5.98∗1064π∗6.383Kg/m3Density=0.0054973139299626∗106Kg/m3Density=5.4973139299626∗103Kg/m3
Now volume and mass both have 3 significant figures so I think density has 3 significant figures too.
Density=5.50∗103Kg/m3
Here are some clips to help you understand
https://www.youtube.com/watch?v=VRtR-rv96rg
https://www.youtube.com/watch?v=__csP0NtlGI
The mass of the earth is 5.98x10^24 kg and its radius is 6.38x10^6 m. Compute the density of the earth, using the power of 10 notations and the correct number of significant figures.
V=43π∗r3V=43π∗(6.38∗106)3V=43π∗6.383∗1018Density=MassVolumeDensity=5.98∗102443π∗6.383∗1018Kg/m3Density=3∗5.98∗1064π∗6.383Kg/m3
(3×5.98)(4×π×6.383)=0.0054973139299626
Density=3∗5.98∗1064π∗6.383Kg/m3Density=0.0054973139299626∗106Kg/m3Density=5.4973139299626∗103Kg/m3
Now volume and mass both have 3 significant figures so I think density has 3 significant figures too.
Density=5.50∗103Kg/m3
Here are some clips to help you understand
https://www.youtube.com/watch?v=VRtR-rv96rg
https://www.youtube.com/watch?v=__csP0NtlGI