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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Asst 27 Question 1
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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: ->->->->->->->->->->->-> :
.4 kg * 9.8 m/s^2= 3.92N
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What is the buoyant force on the ball?
answer/question/discussion: ->->->->->->->->->->->-> :
V= 4/3 pi r^3 for the ball and this would represent the water being displaced right???
x * 9.8 m/s^2 = 2.5 N
x= .26 kg
3.92N - 2.5 N = 1.42 N
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What therefore must be its volume?
answer/question/discussion: ->->->->->->->->->->->-> :
I'm uncertain how to figure out the volume based on the given data.
#$&*
What is its density?
answer/question/discussion: ->->->->->->->->->->->-> :
density = mass/volume I know mass but don't know the volume.
#$&*
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Revised: 06 Feb 2010 17:17:07 -0500
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15 min.
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4/9 at 11:05 a.m.
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