A 7.8-kg solid sphere, made of metal whose density is 2500 kg/m3, is suspended by a cord. When the sphere is immersed in water (of density 1000 kg/m3 ), what is the tension in the cord?
A) 46 N
B) 61 N
C) 76 N
D) 92 N
E) 110 N
A
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