phy201
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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Seed 27.1
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 ball is .4kg * 9.8m/s^2 =3.92N
#$&*
What is the buoyant force on the ball?
answer/question/discussion: ->->->->->->->->->->->-> :
Buoyant Force = 400 g per cm^3
Gravity pulls down, the rubber band pulls up. The forces are not equal and opposite, but the mass is in equilibrium. So there must be a third force--in this case the buoyant force.
#$&*
What therefore must be its volume?
answer/question/discussion: ->->->->->->->->->->->-> :
400cm^3 is the volume
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What is its density?
answer/question/discussion: ->->->->->->->->->->->-> :
d= m/v
d= 400g/400cm^3= 1
#$&*
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about 20 minutes
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&#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. &#