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Solved physics Paper 5??

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Do we need to draw triangles on the graph to find out the gradient of the best fit and the worst acceptable lines ? Please someone reply asap ! Thanks in advance !
 
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fb.junks or magnesium plz tel me how to calculate errors for constants??
P.S; you guys are talented and genius :)
Use the gradient of best fit to calculate y-intercept and then use worst acceptable gradient to calculate y-intercept.The difference of these y-intercepts is the error of the constant.

Nobody is genius.We are all learners.
 
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not sure abt the first one. but i think that depends on the values given.
if the values given are in decimal points, then the calculated value shud have the same no. of decimal points.
and if it is not in decimal points, then the calculated value shud be in the same no. of sig fig.

2) yes the error shud have the same no of decimal points/sig fig.

3)that depends on the values u have taken.

Hope i helped.
All credit to Nibz

thanku soo much
 
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