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Physics P5!!

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Anyone got links to mark schemes having diagrams that are supposed to be drawn? plz help guys
 
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For data analysis , if i say that lg a against lg b is plotted , why should i NOT say that it passes through origin? Does it really is that when we plot any lg graph, the straight line never passes through origin ?
 
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Not sure about the Log graphs but, if the gradient is a straight line it will show relation and (or) proportionality (also the constant) which in P5 is generally used to prove the relationship
 
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197
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423
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73
Not sure about the Log graphs but, if the gradient is a straight line it will show relation and (or) proportionality (also the constant) which in P5 is generally used to prove the relationship
hmmm because i read an examiners' report where it said so :/ i wasnt so sure about it so i preferred confirming .
 
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