Standard discrepancy of the mean: ?m = ?i=1n (xi-xm)2 n(n-1) Where xi= directd back up by Xm= value of the mean n= total amount of money of repetitions of measurements Percent difference: %= |mean- GAV| x 100% GAV Where GAV= general true value Average: Xm= ?in = xi n Where x= individual measurements n= total amount of repetitions of measurements Experimental modus operandi frontmost the air track was leveled and then the two photogate units were dictated virtually 100 cm from each other. After draw up the photogates to the digital channels of the 750 interface, both carts, one heavier than the other, were weighed on a triple- convey balance and the length of the tab on top of the cart was measured. Th! e photogates were restrict up in a height so that only the tab would pass by the light beam of the gates in order to calculate the velocity of the cart. In the first part of the experiment, the heavier cart was set stationary in the middle of the lightbeams on the airtrack and the lighter cart was send towards it so that both metal ends of the carts would...If you want to belong a spacious essay, order it on our website: OrderEssay.net
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