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 Nicole_5521 #1 Posted : Sunday, May 30, 2021 2:15:42 PM Rank: Advanced MemberGroups: Registered Joined: 4/30/2020Posts: 71Thanks: 0 timesWas thanked: 0 time(s) in 0 post(s) Hello,I'm wondering if a fully submerged object is essentially the same as a sunk object? If so, would you treat a fully submerged object exactly the same as a sunk object, where density of the object is greater than density of the fluid; volume of fluid displaced is the same as the volume of the object; and buoyant force is less than force of gravity?Thanks! Back to top User Profile
 INSTR_Katrina_128 #2 Posted : Tuesday, June 01, 2021 5:47:51 PM Rank: Advanced MemberGroups: Registered Joined: 5/18/2021Posts: 73Thanks: 0 timesWas thanked: 0 time(s) in 0 post(s) Hi Nicole!They're not exactly the same. A fully submerged object implies that the object is completely immersed IN the fluid but ABOVE the bottom of the basin. A sunk object is completely immersed in the fluid but sitting on the bottom of the basin.The main difference between the two is the presence/absence of the normal force from the bottom of the basin.With a fully submerged object, there is NO normal force. Instead, Fg = Fb.With a sunk object, there IS a normal force. So, Fg = Fb + N.(where Fg is gravitational force, Fb is buoyancy force, and N is normal force) Back to top User Profile
 Nicole_5521 #3 Posted : Tuesday, June 01, 2021 6:29:44 PM Rank: Advanced MemberGroups: Registered Joined: 4/30/2020Posts: 71Thanks: 0 timesWas thanked: 0 time(s) in 0 post(s) Would the volume of the object be the same as the volume of fluid displaced in both cases?Thanks! Back to top User Profile
 INSTR_Katrina_128 #4 Posted : Tuesday, June 01, 2021 8:12:10 PM Rank: Advanced MemberGroups: Registered Joined: 5/18/2021Posts: 73Thanks: 0 timesWas thanked: 0 time(s) in 0 post(s) Yes! ðŸ˜€ Back to top User Profile
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