A glass flask has a volume of 500 mL at a temperature of 20°C. The flask contains of mercury at
The temperature of the mercury and flask is raised until the mercury reaches the reference mark. The coefficients of volume expansion of mercury and glass are
18 × 10-5 K-1 and 2.0 × 10-5 K-1, respectively. The temperature at which this occurs is closest to
A) 122°C.
B) 112°C.
C) 102°C.
D) 110°C.
E) 132°C.
Answer: A
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What will be an ideal response?
Detailed measurements of the disk and central bulge region of our Galaxy suggest our Milky Way is a:
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The emissivity of an ideal reflector has which of the following values?
a. 0 c. 100 b. 1 d. infinity