Must all three strings have the same tension? Justify your answer. Object A has

Question

Must all three strings have the same tension? Justify your answer.

Object A has a volume of 1.0 times 10to the negative fifth m3 and a density of 1300kg/m3. The tension in the string to which object A is attached is 0.0098N.

A) Calculate the buoyant force on object A

B) Calculate the density of the liquid.

c) Some of the liquid is now drained from the tank until half of the volume of object A is submerged. Would the tension in the string to which object A is attached increase, decrease, or remain the same? Explain.

Explanation / Answer

the tension is not the same because T=mg-F_upthrust. where F_upthrust=D*g*V Volume of the three objects is different. so that F_upthrust is different. a) i dont understand the part "a volume of 1.0 times 10to the negative fifth m3 " so I ll give it conceptually. F=D*g*V where D be density of the liqid V be volume (in cubic meter) of the object we have that T=mg-F_upthrust. mg=D0*g*V where D0 be density of the mass. so T=g*V*(D0-D). so that D=D0-T/gV c) when the liquid is drained, the volume of the mass that is emerged in the liquid ll be decreased. so that F_upthrust is decreased so that T ll be increased. b).

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