Calculate the area of the room and its uncertainty in square

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1) The length and width of a rectangular room are measured to be 3.955 + or - 0.005 m and 3.050 + or - 0.005 m.
Calculate the area of the room and its uncertainty in square meters.

2) How many times longer than the mean life of an extremely unstable atomic nuleus is the lifetime of a human?
( Hint: The lifetime of an unstable atmoic nucleus is on the order of 10^-22 s)

Reference no: EM131127453

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