Explanations 
Textbooks 
Flashcards 
91影视 AI 
Notes 
Study Plans 
Study Sets 
Find a degree 
Magazine Problem 1
On a warm summer day, the air temperature is \(84^{\circ} \mathrm{F}\). Express
this temperature in (a) \(^{\circ} \mathrm{C}\) and (b) kelvins.
Problem 2
The temperature at which liquid nitrogen boils (at atmospheric pressure) is
\(77 \mathrm{K}\). Express this temperature in
(a) \(^{\circ} \mathrm{C}\) and (b) \(^{\circ} \mathrm{F}\).
Problem 3
(a) At what temperature (if any) does the numerical value of Celsius degrees
equal the numerical value of Fahrenheit degrees? (b) At what temperature (if
any) does the numerical value of kelvins equal the numerical value of
Fahrenheit degrees?
Problem 4
(a) At what temperature (if any) does the numerical value of Celsius degrees
equal the numerical value of Fahrenheit degrees? (b) At what temperature (if
any) does the numerical value of kelvins equal the numerical value of
Fahrenheit degrees?
Problem 5
Aliens from the planet Jeenkah have based their temperature scale on the
boiling and freezing temperatures of ethyl alcohol. These temperatures are
\(78^{\circ} \mathrm{C}\) and \(-114^{\circ} \mathrm{C}\) respectively. The people
of Jeenkah have six digits on each hand, so they use a base- 12 number system
and have decided to have \(144^{\circ} \mathrm{J}\) between the freezing and
boiling temperatures of ethyl alcohol. They set the freezing point to
\(0^{\circ} \mathrm{J} .\) How would you convert from " \(\mathrm{J}\) to
\(^{\circ} \mathrm{C} ?\)
Problem 6
A 2.4 -m length of copper pipe extends directly from a hot-water heater in a
basement to a faucet on the first floor of a house. If the faucet isn't fixed
in place, how much will it rise when the pipe is heated from $20.0^{\circ}
\mathrm{C}\( to \)90.0^{\circ} \mathrm{C} .$ Ignore any increase in the size of
the faucet itself or of the water heater.
Problem 8
Steel railroad tracks of length \(18.30 \mathrm{m}\) are laid at $10.0^{\circ}
\mathrm{C} .$ How much space should be left between the track sections if they
are to just touch when the temperature is \(50.0^{\circ} \mathrm{C} ?\)
Problem 11
The coefficient of linear expansion of brass is \(1.9 \times 10^{-5}\) $^{\circ}
\mathrm{C}^{-1} .\( At \)20.0^{\circ} \mathrm{C},$ a hole in a sheet of brass
has an area of \(1.00 \mathrm{mm}^{2} .\) How much larger is the area of the
hole at $30.0^{\circ} \mathrm{C} ?(\text { Wile tutorial: loop around the
equator })$
Problem 12
Aluminum rivets used in airplane construction are made slightly too large for the rivet holes to be sure of a tight fit. The rivets are cooled with dry ice \(\left(-78.5^{\circ} \mathrm{C}\right)\) before they are driven into the holes. If the holes have a diameter of \(0.6350 \mathrm{cm}\) at \(20.5^{\circ} \mathrm{C},\) what should be the diameter of the rivets at \(20.5^{\circ} \mathrm{C}\) if they are to just fit when cooled to the temperature of dry ice?
Problem 13
A temperature change \(\Delta T\) causes a volume change \(\Delta V\) but has no
effect on the mass of an object. (a) Show that the change in density $\Delta
\rho\( is given by \)\Delta \rho=-\beta \rho \Delta T$. (b) Find the fractional
change in density \((\Delta \rho / \rho)\) of a brass sphere when the
temperature changes from \(32^{\circ} \mathrm{C}\) to \(-10.0^{\circ} \mathrm{C}\)
