What is the difference between the two lengths lb

What is the difference between the two lengths lb - la

Reference no: EM13238241

Length A is measured to be 7.5cm±0.3 cm and length B is 7.0cm±0.6cm. What is the difference between the two lengths, LB - LA, and the uncertainty in the difference? If the uncertainty in length A is reduced from 0.3 cm to 0.1 cm, a factor of 3 improvement, what is the new uncertainty in the difference LB - LA?

Reference no: EM13238241

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