Sphere

The surface of the sphere is 12100 cm2, and the weight is 136 kg. What is its density?

Correct result:

h =  1086.6 kg/m3

Solution:

S=12100 cm2 m2=12100/10000  m2=1.21 m2 m=136 kg  S=4 πr2  r=S4π=1.214 3.14160.3103 m  V=43 π r3=43 3.1416 0.310330.1252 m3  h=m/V=136/0.1252=1086.6 kg/m3



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