1. The problem statement, all variables and given/known data See image attached. Oh it's part c by the way. 2. Relevant equations maybe upthrust=weight of water displaced... None really relevant. 3. The attempt at a solution I thought the balance would initially go up as the sphere entered the water, (but maybe slightly less than the weight of the beaker+sphere because up thrust is acting on the sphere) because the weight of the sphere would be greater than any opposing forces i.e upthrust because the sphere is accelerating. Then when the ball was rising to the surface I would assume the balance reading would be just the weight of the beaker as upthrust will be greater than the weight of the sphere ( or maybe you could calculate the upthrust then take that away from the weight of the beaker?)Then when the sphere is floating on the surface the balance would read the weight of the sphere+beaker. Is any of this sort of right?