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Phy 121
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: ->->->->->->->->->->->-> :
The weight of the given ball will be 3.92N because .4kg*9.8m/s^2 = 3.92N.
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• What is the buoyant force on the ball?
answer/question/discussion: ->->->->->->->->->->->-> :
The buoyant force will be 1.42N because the total force in the y direction is 0=2.5N+B-3.92, which gives us B = 1.42N.
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• What therefore must be its volume?
answer/question/discussion: ->->->->->->->->->->->-> :
The volume of this ball is therefore 142cm^3 because 1.42N*(1000cm^3/10N) = 142cm^3.
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• What is its density?
answer/question/discussion: ->->->->->->->->->->->-> :
Given the above the density of this ball is 2.82 g/cm^3 because 400g/142cm^3 = 2.82g/cm^3.
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&#This looks very good. Let me know if you have any questions. &#