gk636 Posted August 8, 2016 Share Posted August 8, 2016 Question: "Given the mass and radius of the planet Mercury, calculate the density." Mass: 3.3010 x 10 to the 23rd kg Radius: 2.440 x 10 t0 the 6th m Link to comment Share on other sites More sharing options...
Endy0816 Posted August 8, 2016 Share Posted August 8, 2016 What you will want to do for these kinds of problems is to first locate the formulas you need.ie. Density = Mass / Volume Now we see Mass is there, but we have a new problem. We don't know volume, so we go searching again: Volume of a Sphere = 4/3 * Pi * r^3 or taken together: Density = Mass / (4/3 * Pi * r^3) From there you can plug your knowns(Mass, radius) in to find your unknowns(Density). Link to comment Share on other sites More sharing options...
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