[latex]Dane:[/latex] [latex]r=0,5cm=0,005m[/latex] [latex]T_1=0^oC=273K[/latex] [latex]T_2=18^oC=291K[/latex] [latex] ho_{w1}=1000 frac{kg}{m^3} [/latex] [latex] ho_m=8960 frac{kg}{m^3} [/latex] [latex]g=9,81 frac{N}{kg} [/latex] [latex]pV=nRT[/latex] [latex]p_1=p_2[/latex] [latex] frac{p_1}{nR} = frac{p_2}{nR} [/latex] [latex] frac{T_1}{V_1}= frac{T_2}{V_2} [/latex] [latex] frac{T_1}{frac{m_w}{ ho_{w1}} } = frac{T_2}{ frac{m_w}{ ho_{w2}}}} [/latex] [latex]T_1* ho_{w1}}=T_2* ho_{w2}}[/latex] [latex] frac{T_1* ho_{w1}}{T_2} = ho_{w2}}[/latex] [latex] ho_{w2}}= frac{T_1* ho_{w1}}{T_2}= frac{273K*1000 frac{kg}{m^3} }{291K}=938,14432989frac{kg}{m^3}[/latex] [latex]Fw= ho_{w2}*V_m*g= ho_{w2}* frac{4}{3} pi r^3 *g=[/latex] [latex]=938,14432989frac{kg}{m^3}*frac{4}{3}*3,14*(0,005m)^3*9,81 frac{N}{kg}=[/latex][latex]=0,004818782092N[/latex]
