A silver bar 0.125 meter long is subjected to a temperature change from 200 C to 100 C. What will be the length of the bar after the temperature change? A. 0.00023635 meter B. 0.0000189 meter C. 0.00002363 meter D. 0.124764 meter

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A silver bar 0.125 meter long is subjected to a temperature change from 200 C to 100 C. The length of the bar after the temperature change will be 0.124764 meter. Solution: L = 0,125.19.10^{-6}.(200-100); L=2,375.10^{-6}.10^2+0,125; {L=0.124764 m}.

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Updated 7/3/2019 4:02:08 PM

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128.25 N force is required to accelerate it to a rate of 9.5 m/s2.
Force = ma = 13.5 kg * 9.5 m/s2 = 128.25 N

Added 7/3/2019 4:02:08 PM

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