Phy 201
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: ->->->->->->->->->->->-> :
Fg = .4 kg * 9.8 m/s/s
Fg = 3.92 Newtons
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• What is the buoyant force on the ball?
answer/question/discussion: ->->->->->->->->->->->-> :
Fnet = Fg – Ft – Fb
0 = 3.92 N – 2.5 N – Fb
Fb = 1.42 N
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• What therefore must be its volume?
answer/question/discussion: ->->->->->->->->->->->-> :
Fb = (V * 1g/cm^2) * 9.8 m/s/s
1.42 kg * m/s/s = (V * 1g/cm^3) * 9.8 m/s/s
.145 kg = V * 1g/cm^3
145 g = V * 1g/cm^3
V = 145 cm^3
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• What is its density?
answer/question/discussion: ->->->->->->->->->->->-> :
p = m/v
p = .4 kg / 145 cm^3
p = .0028 kg/cm^3
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30 minutes
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&#Very good work. Let me know if you have questions. &#
*&$*&$