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: ->->->->->->->->->->->-> :
400 grams or .4 kg
• What is the buoyant force on the ball?
answer/question/discussion: ->->->->->->->->->->->-> :
The buoyant force:
2.5 N = m * 9.8m/s^2
m = .255 kg or 255 grams
• What therefore must be its volume?
answer/question/discussion: ->->->->->->->->->->->-> :
255 cm^3
• What is its density?
answer/question/discussion: ->->->->->->->->->->->-> :
.4 kg
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10 min
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Very good work. Let me know if you have questions.