Question

1. you measured the width of the copper block to be 2.5 cm. you determined the uncertainty of the ruler to be 0.05 cm. determine the minimum of width this copper block could be accounting for the uncertainty in the last digit.

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Explanation:

Step1: Identify the measured value and uncertainty

The measured width is $2.5$ cm and the uncertainty of the ruler is $0.05$ cm.

Step2: Calculate the minimum value

The minimum value is obtained by subtracting the uncertainty from the measured value. So, $2.5 - 0.05=2.45$ cm.

Answer:

$2.45$ cm