Map a Sapling Learning maamillan learning Rank the following measurements by the

Question

Map a Sapling Learning maamillan learning Rank the following measurements by the percent uncertainty (or percent error) Lowest Highest A pencil is measured to You estimate the change be 141 mm long using a n your pocket to be about ruler with 1 mm tickmarks 50 cents 10 cents. You estimate the number The speed of an airplane is measured of marbles in a jar to be 84. to be 570 10 km/hr The actual number is 100. The speed of an airplane is measured to be 570 130 km/hr AD revious 3 Give Up & View Solution Check Answer Next Exit 8 Hint

Explanation / Answer

1) % uncertaintainty in pencil length =1/141 =0.0071

% uncertaintity in marbles =16/100 =0.16

% of uncertainiy when speed is 570+/-130 =130/570 =0.228

% of uncertainiy when speed is 570+/-10 =10/570 =0.0.017

% of uncertainiy in change in your pocket =10/50 =0.20

therefore order fromo lowest uncertainity to highest is

1) % uncertaintainty in pencil length

2)% of uncertainiy when speed is 570+/-10 =10/570 =0.0.017

3)% uncertaintity in marbles =16/100 =0.16

4)% of uncertainiy in change in your pocket =10/50 =0.20

5)% of uncertainiy when speed is 570+/-130 =130/570 =0.228

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