# Example 17-1
rho = 8.9e3 kg/m^3
n = 1.05e-25 kg
rho / n

# Example 17-2
98.6 degF; degC

# Example 17-3
a = 12e-6 / degC
h = 200 m
delt = 20 degCdiff
delh1 = a * h * delt
delt = -50 degCdiff
delh2 = a * h * delt

# Example 17-5
x2 = 6.453 cm
x1 = 6.420 cm
a = 12e-6 / degC
dd = (x2 - x1) / a / x1

# Example 17-7
b = 950e-6/degC
vol = 70 L
delt = 20 degCdiff
delv = b * vol * delt; L

# Example 17-8
a = 12e-6 / degC
E = 20 GPa
delt = 30 degCdiff
sig = a * E * delt

# Example 17-10
n1 = 1 mol
t1 = 273 degK
p1 = 1.013e5 Pa
vol = 1 * gas() * t1 / p1

# Example 17-11
p1 = 1.064e5 Pa
vol = 0.0244 m^3
t1 = 293 degK
n1 = p1 * vol / (gas() * t1)

# Example 17-13
p1 = 3.01e5 Pa
t2 = 313 degK
t1 = 283 degK
p2 = p1 * t2 / t1

# Example 17-14
1.008e-3 kg / 6.02e23

# Homework Problems:

TBD