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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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Copy the problem below into a text editor or word processor.
• This form accepts only text so a text editor such as Notepad is fine.
• You might prefer for your own reasons to use a word processor (for example the formatting features might help you organize your answer and explanations), but note that formatting will be lost when you submit your work through the form.
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You should enter your answers using the text editor or word processor. You will then copy-and-paste it into the box below, and submit.
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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 g/1000 = 0.4 kg
w = mg
= 0.4 kg * 9.8 m/s^2
= 3.92 kg
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• What is the buoyant force on the ball?
answer/question/discussion: ->->->->->->->->->->->-> :
T = Fb – mg
The sum of the forces is zero so
T + F_b - m g = 0.
Your equation sets the tension equal to the force to which it is actually equal and opposite.
2.5 N = Fb – 3.92 kg
Fb = 2.5 N + 3.92 kg
Fb = 6.42 Newtons
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• What therefore must be its volume?
P = 1000 kg/m^2
Fb = pvg
V = Fb/pg
V = 6.42 N / 1000 kg/m^2 * 9.8 m/s^2
V = 0.66 * 10^-3 m^3
= 0.66 ml
answer/question/discussion: ->->->->->->->->->->->-> :
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• What is its density?
answer/question/discussion: ->->->->->->->->->->->-> :
1000 kg/m^3
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45 minutes
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11/11 9:30 am EST
&#See any notes I might have inserted into your document, and before looking at the link below see if you can modify your solutions. If there are no notes, this does not mean that your solution is completely correct.
Then please compare your old and new 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.If your solution is completely consistent with the given solution, you need do nothing further with this problem. &#