A steel bridge is 1000 m long at -20C in winter. What is the change in length when the temperature rises to 40C in summer? The average coefficient of linear expansion of this steel is 11 10-6 K-1.
A) 0.33 m
B) 0.44 m
C) 0.55 m
D) 0.66 m
Question 2
A 10-gram wire that is 6.0 m long is under tension. When a transverse wave of frequency 280 Hz travels along the wire, its wavelength is 0.60 m,and its amplitude is 8.4 mm.
How much time does it take for a crest of the transverse wave to travel the length of the wire? A) 36 ms
B) 31 ms
C) 40 ms
D) 44 ms
E) 49 ms
Temperature cycles for 24 hours
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Change in air temperature at various air flow rates for a 7 pass operation
Carbon Dioxide, Trace Gases, and Climate Change
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