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Solved physics Paper 5??

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Would love your input on my diagram for may/june 2008. I am no artist, and no it is not a snake eating the glass sheet, it is my micrometer screw guage.. I've completed the paper and marked it and it seems right. If my diagram is approved, I'll scan my answer and put it up here :)

the drawing is good!!could u pls scan your procedures as well?
 
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Can someone solve this so that lgT is the y axis and lgr is the x axis......T^2 = kr^3

Hey there.
Steps:
T^2 = kr^3
=> Times both sides by lg.
=> lgT^2 = lgkr^3
=> 2 lgT = lgk + lgr^3
=> 2 lgT = 3 lgr + lgk
=> Divide both sides by 2.
=> lgT = 3/2(lgr) + 1/2 lgk
This is in the form of y = mx + c
Where y = lgT, m = 3/2, x = lgr, c = 1/2 lgk

Rules used from logarithms:

lgAB = lgA + lgB
lgA^x = x lgA

Hope that helped.
 
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Hey there.
Steps:
T^2 = kr^3
=> Times both sides by lg.
=> lgT^2 = lgkr^3
=> 2 lgT = lgk + lgr^3
=> 2 lgT = 3 lgr + lgk
=> Divide both sides by 2.
=> lgT = 3/2(lgr) + 1/2 lgk
This is in the form of y = mx + c
Where y = lgT, m = 3/2, x = lgr, c = 1/2 lgk

Rules used from logarithms:

lgAB = lgA + lgB
lgA^x = x lgA

Hope that helped.
Thanks a lot ... that really helped
 
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