Phy 231
Your 'cq_1_27.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
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A ball of mass 400 grams is immersed in water. The ball is suspended in the water by a rubber band chain which exerts a tension force of 2.5 Newtons on the ball.
• What is the weight of the ball?
answer/question/discussion: ->->->->->->->->->->->-> :
Wt = 0.4*9.8 = 3.92 N - 2.5 N = 1.42 N
• What is the buoyant force on the ball?
answer/question/discussion: ->->->->->->->->->->->-> :
0.4 * 9.8 = 3.92 N
• What therefore must be its volume?
answer/question/discussion: ->->->->->->->->->->->-> :
V = m / d
Since it displaced 400 g of water, then its volume would be 400 cm^3
• What is its density?
answer/question/discussion: ->->->->->->->->->->->-> :
D = m / v
Its density would be 1 g/cm^3.
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15 min
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You appear to be reversing the roles of weight and buoyant force. That's easy to fix. Check the link:
&#Please compare your solutions with the expanded discussion at the link
Solution
Self-critique your solutions, if this is necessary, according to the usual criteria. Insert any revisions, questions, etc. into a copy of this posted document. Mark any insertions with &&&& so they can be easily identified. &#