Calculate 30391

Calculate a sphere's surface area and weight if its volume is 707.54 cm3 and if it is made of a material with a density of 7.8 g / cm3.

Correct answer:

S =  383.9884 cm2
m =  5518.812 g

Step-by-step explanation:

V=707.54 cm3 ρ=7.8 g/cm3  V = 34π r3  r=33 V/(4π)=33 707.54/(4 3.1416)5.5278 cm  S=4π r2=4 3.1416 5.52782=383.9884 cm2
m=ρ V=7.8 707.54=5518.812 g

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