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You find a solid sphere of some unknown material. You determine its diameter to

ID: 2101405 • Letter: Y

Question

You find a solid sphere of some unknown material. You determine its diameter to be 6.53 cm and its mass 0.65 kg. what is its density? (use kg/m^3 as units)
For some reason I keep getting this one incorrect. I used V=4/3*Pi*r^3 to find volume of sphere and then plugged it into the d=m/v equation. Please show me the steps! Thank you so much! You find a solid sphere of some unknown material. You determine its diameter to be 6.53 cm and its mass 0.65 kg. what is its density? (use kg/m^3 as units)
For some reason I keep getting this one incorrect. I used V=4/3*Pi*r^3 to find volume of sphere and then plugged it into the d=m/v equation. Please show me the steps! Thank you so much! You find a solid sphere of some unknown material. You determine its diameter to be 6.53 cm and its mass 0.65 kg. what is its density? (use kg/m^3 as units)
For some reason I keep getting this one incorrect. I used V=4/3*Pi*r^3 to find volume of sphere and then plugged it into the d=m/v equation. Please show me the steps! Thank you so much!

Explanation / Answer

density = mass /volume


= 0.65 / 4/3 * 3.14 * 0.03265^3


density = 4471 kg/m^3

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