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Chapter 16: Problem 8
Stainless-steel cookware often has a layer of aluminum or copper embedded in the bottom. Why?
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If you put a thermometer in direct sunlight, what do you measure: the air temperature, the temperature of the Sun, or some other temperature?
A friend who's skeptical about climate change argues that the roughly \(0.85^{\circ} \mathrm{C}\) increase in Earth's temperature during the industrial era could be caused by an increase in the Sun's power output. The Sun's average power has, in fact, increased by about \(0.05 \%\) during this time. Could your friend be right?
A blue giant star whose surface temperature is 23 kK radiates energy at the rate of \(3.4 \times 10^{30} \mathrm{W}\). Find the star's radius, assuming it bchaves like a blackbody.
At low temperatures the specific heats of solids are approximately proportional to the cube of the temperature: \(c(T)=a\left(T / T_{0}\right)^{3}\) For copper, \(a=31 \mathrm{J} / \mathrm{g} \cdot \mathrm{K}\) and \(T_{0}=343 \mathrm{K} .\) Find the heat required to bring \(40 \mathrm{g}\) of copper from \(10.0 \mathrm{K}\) to \(25.0 \mathrm{K}.\)
Compare the relative sizes of the kelvin, the degree Celsius, the degree Fahrenheit, and the degree Rankine.
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