A Thin Wire Has a Length of 21.7 cm and Radius 0.46 mm. Calculate the Volume of the Wire To Correct Significant Figure.

Given: L = 21.7 cm and R = 0.46mm = 0.046 cm.

Hence, the volume of wire = πr2l cubic units.

Now, substitute the values in formula, we get

V = (22/7) (0.046)2 (21.7) V = 0.1443 cm3

The volume of the wire to correct the significant figure is 0.14 cm3.

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