can someone check this for me?
question:
The planet Mercury has a mass of 3.302 × 1023 kgand a density of 5.43 × 103 kg m–3. Use this information to calculate the volume of Mercury.
where
is mass and 
is density
You should give your answer in scientific notation to the appropriate number of significant figures and with the correct SI units.
Answer: I've got 6.08 x 1025 m3
I don't know if thats right though
The planet Mercury has a mass of 3.302 × 1023 kgand a density of 5.43 × 103 kg m–3. Use this information to calculate the volume of Mercury.
where
is mass and is densityYou should give your answer in scientific notation to the appropriate number of significant figures and with the correct SI units.
Answer: I've got 6.08 x 1025 m3
I don't know if thats right though
You made a power of ten error
Original post by BobbJo
You made a power of ten error
just realised i mixed up the power of 10 with the units. I've now got 6.08 x 1019 does that sound better?
Well, density = mass/volume, so volume = mass/density. In this question, you would do volume = (3.302 x 10^23) / (5.43 x 10^3).
Spoiler
Original post by DaQuestioner
Well, density = mass/volume, so volume = mass/density. In this question, you would do volume = (3.302 x 10^23) / (5.43 x 10^3).
Spoiler
i mucked up and did 10^-3 instead (got confused with the units). i now have the same answer as you thank you!
Original post by lucyfloss
just realised i mixed up the power of 10 with the units. I've now got 6.08 x 1019 does that sound better?
yes
Original post by lucyfloss
i mucked up and did 10^-3 instead (got confused with the units). i now have the same answer as you thank you!
No problem
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