Chapter 21: Problem 5
If your doctor tells you that your temperature is \(310 \mathrm{~K}\), should you worry? Explain your answer.
Chapter 21: Problem 5
If your doctor tells you that your temperature is \(310 \mathrm{~K}\), should you worry? Explain your answer.
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Get started for free( \(a\) ) The temperature of the surface of the Sun is about 6000 \(\mathrm{K}\). Express this on the Fahrenheit scale. (b) Express normal human body temperature, \(98.6^{\circ} \mathrm{F}\) on the Celsius scale. ( \(c\) ) In the continental United States, the lowest officially recorded temperature is \(-70^{\circ} \mathrm{F}\) at Rogers Pass, Montana. Express this on the Celsius scale. ( \(d\) ) Express the normal boiling point of oxygen, \(-183^{\circ} \mathrm{C}\), on the Fahrenheit scale. ( \(e\) ) At what Celsius temperature would you find a room to be uncomfortably warm?
The amplification or gain of a transistor amplifier may depend on the temperature. The gain for a certain amplifier at room temperature \(\left(20.0^{\circ} \mathrm{C}\right)\) is \(30.0\), whereas at \(55.0^{\circ} \mathrm{C}\) it is 35.2. What would the gain be at \(28.0^{\circ} \mathrm{C}\) if the gain depends linearly on temperature over this limited range?
An aluminum cup of \(110 \mathrm{~cm}^{3}\) capacity is filled with glycerin at \(22^{\circ} \mathrm{C}\). How much glycerin, if any, will spill out of the cup if the temperature of the cup and glycerin is raised to \(28^{\circ} \mathrm{C}\) ? (The coefficient of volume expansion of glycerin is \(5.1 \times\) \(\left.10^{-4} / \mathrm{C}^{\circ} .\right)\)
A cylinder placed in frictionless bearings is set rotating about its axis. The cylinder is then heated, without mechanical contact, until its radius is increased by \(0.18 \%\). What is the percent change in the cylinder's ( \(a\) ) angular momentum, \((b)\) angular velocity, and ( \(c\) ) rotational energy?
A resistance thermometer is a thermometer in which the electrical resistance changes with temperature. We are free to define temperatures measured by such a thermometer in kelvins (K) to be directly proportional to the resistance \(R\), measured in ohms \((\Omega) .\) A certain resistance thermometer is found to have a resistance \(R\) of \(90.35 \Omega\) when its bulb is placed in water at the triple-point temperature \((273.16 \mathrm{~K}) .\) What temperature is indicated by the thermometer if the bulb is placed in an environment such that its resistance is \(96.28 \Omega ?\)
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