Osmium (Os) is the densest element known (rho = 22570 kg/m^2). Calculate the mas

Question

Osmium (Os) is the densest element known (rho = 22570 kg/m^2). Calculate the mass of an Os sphere 15 cm in diameter (about the size of a grapefruit). V_sphere = 4/3 x r^3 The coldest temperature ever measured in the U.S. is -80.degree F, recorded on January 23, 1971. hi Prospect Creek. Alaska Convert that temperature to degree C and K. The Honda Insight, a hybrid electric vehicle, has an EPA gas mileage rating of 41 ms/gal in the city. How many kilometers can the Insight travel on the amount if gasoline that would fit in a soda can? The volume of a soda can is 355 mL.

Explanation / Answer

18) Radius = diameter/2=15/2=7.5cm

= .075m

Volume of the sphere = 4/3×3.14×(r)3

=4/3×3.14×(.075)3

= 4/3×3.14×(000421.875)

= .001766.25 m3

denisty = 22570kg/m3

Mass of the sphere = volume × denisty

                             =.001766.25×22570

                             = 39.8642625kg

answer 39.864kg

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