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A seconds pendulum clock has a steel wir...

A seconds pendulum clock has a steel wire. The clock shows correct time at `25^(@)C`. How much time does the clock lose or gain, in one week, when the temperature is increased to `35^(@)C`?
`(alpha_(steel) = 1.2 xx 10^(-5)//^(@)C)`

A

A. 321.5 s

B

B. 3.828 s

C

C. 82.35 s

D

D. 36.28 s

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