What does the scale read, assume a bar 2.5 m long expands

What does the scale read

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Q. A 62-kg girl weighs herself by standing on a scale in an elevator. What does the scale read when: the elevator is descending at a constant rate of 12 m/s?

Q. Suppose a bar 2.5 m long expands 0.5 cm when heated. By how much will a bar 100 m long of the same material expand when similarly heated?

Reference no: EM1360961

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What does the scale read : assume a bar 2.5 m long expands 0.5 cm when heated. By how much will a bar 100 m long of the same material expand when similarly heated.

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