razni koeficienti

potrebne in nepotrebne konstante

planeti in Sonce
radij Zemlje r_Z = 6400km
radij Sonca r_S = 690000km
masa Zemlje M_Z = 6 ^. 10²⁴kg
masa Sonca M_S = 2 ^. 10³⁰kg
razdalja Zemlja-Sonce r = 1a.e. = 150 ^. 10⁶km


koeficienti temperaturnega raztezanja
železo 1, 2 ^. 10^-5K^-1
kovanec 2, 2 ^. 10^-5K^-1
aluminij 2, 3 ^. 10^-5K^-1
plastika, CD 7 ^. 10^-5K^-1
steklo (navadno) 8, 5 ^. 10^-6K^-1
steklo (Pyrex) 3, 3 ^. 10^-6K^-1
voda 4 ^. 10^-4K^-1

specifične toplote
vode c_p = 4, 2${\frac{{kJ}}{{kg K}}}$
led c_p = 2, 2${\frac{{kJ}}{{kg K}}}$
para c_p = ${\frac{{8R}}{{2M}}}$
aluminij c_p = 880${\frac{{J}}{{kgK}}}$
plastika c_p = 1, 13${\frac{{kJ}}{{kg K}}}$
svinec c_p = 130${\frac{{J}}{{kgK}}}$
železo c_p = 457${\frac{{J}}{{kgK}}}$

specifična talilna toplota vode q_t = 334kJ/kg
specifična izparilna toplota vode q_i = 2, 26MJ/kg

gostote
voda $\varrho_{{H_2O}}^{}$ = 1${\frac{{kg}}{{dm^3}}}$
zrak (!) $\varrho_{{zrak}}^{}$ = 1, 2${\frac{{kg}}{{m^3}}}$
alko $\varrho_{{alko}}^{}$ = 900${\frac{{kg}}{{m^3}}}$
pluta $\varrho_{{pluta}}^{}$ = 0, 4${\frac{{kg}}{{dm^3}}}$
živo srebro $\varrho_{{Hg}}^{}$ = 13, 6${\frac{{kg}}{{dm^3}}}$
svinec $\varrho_{{Pb}}^{}$ = 10, 8${\frac{{kg}}{{dm^3}}}$
železo $\varrho_{{Fe}}^{}$ = 7, 8${\frac{{kg}}{{dm^3}}}$