(Answered) A spring with a pointer attached is hanging next to a scale

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A spring with a pointer attached is hanging next to a scale marked in millimeters. Three different packages are hung from the spring, in turn, as shown in Figure.

(a) Which mark on the scale will the pointer indicate when no package is hung from the spring?

(b) What is the weight W of the third package

668_weight W of the thirdpackage.jpg

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