1. A construction worker uses a steel tape to measure the length of an aluminum support column. If the measured length i

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1 A Construction Worker Uses A Steel Tape To Measure The Length Of An Aluminum Support Column If The Measured Length I 1 (149.29 KiB) Viewed 39 times

1. A construction worker uses a steel tape to measure the length of an aluminum support column. If the measured length is 18.70 m when the temperature is 21.2° C, what is the measured length when the temperature rises to 29.4° C? (Do not neglect the expansion of the tape.) (Osteel = 11 x 10-6 °C-, Caluminum = 24 x 10-6 °C-1) 2. A mercury thermometer is constructed as in the figure. The capillary tube has a diameter of 0.0050 cm, and the bulb has a diameter of 0.30 cm. Initially the mercury just fills the bottom bulb. Neglecting the expansion of the glass, find the change in height of the mercury column for a temperature change of 25° C. (Ymercury = 1.82 x 10-4 °C) 3. A steel donut-shaped ring has an inner diameter exactly the same the diameter of a steel ball. If the ring is heated significantly, will the ball be able to pass through the ring or not? Explain.