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Phy 241
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: ->->->->->->->->->->->-> :
weight=m*g=.4kg*9.8m/s^2=3.92N
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• What is the buoyant force on the ball?
answer/question/discussion: ->->->->->->->->->->->-> :
0=Fbuo+Ften-Fweight=Fbuo+2.5N-3.92N ; Fbuo=1.42N
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• What therefore must be its volume?
answer/question/discussion: ->->->->->->->->->->->-> :
V=weight/density of water = 1.42N/9800N/m^3 = .000145m^3
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• What is its density?
answer/question/discussion: ->->->->->->->->->->->-> :
d=m/v=.4kg/.000145m^3=2758.62kg/m^3
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about 7 minutes
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&#Very good responses. Let me know if you have questions. &#