1. The problem statement, all variables and given/known data A hollow plastic sphere is held below the surface of a fresh water lake by a cord anchored to the bottom of the lake. The sphere has a volume of 0.65 m^3 and the tension in the cord is 842 N. What is the mass of the sphere, in kg? Enter your answer using 3 decimal places, don't enter the units 2. Relevant equations [tex] \rho *V*g=F[/tex] F=mg 3. The attempt at a solution because the system is in equilibrium F tension + Force of gravity = Buoyant Force. 842N + (9.81m/s^2)m = (1000kg/m^3)(0.65m^3)(9.81m/s^2) the answer turns out to be 564kg, unless i'm doing something really stupid. but that seems to be really high for a hollow plastic sphere.