A mercury thermometer has a bulb of volume 0.100 cm3 at 10.°C. The capillary tube above the bulb has a cross-sectional area of 0.012 mm2
The volume thermal expansion coefficient of mercury is 1.80 × 10-4 K-1. How much will the mercury rise when the temperature rises to 30.°C?
3.0 cm
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The twinkling of the stars is a result of atmospheric
A) reflection. B) refraction. C) scattering. D) dispersion. E) aberrations.
A lunar month is about 28 days. If the Moon were closer to Earth than it is now, the lunar month would be
A) more than 28 days. B) unchanged at 28 days. C) less than 28 days.
Arrange the following units, Calorie, calorie, and Joule from smallest to largest
a. Joule, Calorie, calorie b. calorie, Calorie, Joule c. Joule, calorie, Calorie d. Answers a and c are both correct, it apparently is a trick question.