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Physics
Physics
Problem
State the mathematical expression for the density
ρ
T
\rho_T
ρ
T
of a solid at temperature
T
=
T
0
+
Δ
T
T=T_0+\Delta T
T
=
T
0
+
Δ
T
in terms of its initial density
ρ
0
\rho_0
ρ
0
at
T
0
T_0
T
0
and its coefficient of cubical expansion
γ
\gamma
γ
(assume
γ
Δ
T
≪
1
\gamma\Delta T\ll1
γ
Δ
T
≪
1
).
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