Физика, страница 5

$m=\rho V$

$V=\frac{m}{\rho}$

$F_{\text{тяж}}=mg$

$p=\frac{F}{S}$

$A=F\cdot s$

$P=\frac{A}{t}$

$Q_1+Q_2+\dots+Q_n=0$

$Q=q m$

$\eta=\frac{A}{Q_1}=\frac{Q_1-Q_2}{Q_1}$

$c=\frac{Q}{m\Delta t}$

$q=I t$

$U=\frac{A}{q}$

$R=\frac{U}{I}$

$U=I R$

$P=I^2 R$

$P=\frac{U^2}{R}$

$a=\frac{v-v_0}{t}$

$v=v_0+at$

$s=v_0t+\frac{at^2}{2}$

$x=x_0+v_0t+\frac{at^2}{2}$

$v^2-v_0^2=2as$

$p=mv$

$J=F\Delta t=\Delta p$

$m_1v_1+m_2v_2=m_1u_1+m_2u_2$

$E_k=\frac{mv^2}{2}$

$E_k+E_p=\text{const}$

$n = \frac{N}{V},\qquad p = nk_BT = \frac{N}{V}k_BT$

$p=\frac{1}{3}nm_0\langle v^2\rangle=\frac{1}{3}\rho v_{rms}^2$

$A=\nu RT\ln\frac{V_2}{V_1}$

$A=p(V_2-V_1)$

$U=\frac{3}{2}\nu RT$

$\eta_C=1-\frac{T_2}{T_1}$

$C_V=\frac{f}{2}R,\quad C_P=C_V+R,\quad \gamma=\frac{C_P}{C_V}$

$pV^\gamma=const,\quad TV^{\gamma-1}=const,\quad A=\frac{p_1V_1-p_2V_2}{\gamma-1}$

$A_{cycle}=\oint p\,dV$

$\Delta S=\nu C_V\ln\frac{T_2}{T_1}+\nu R\ln\frac{V_2}{V_1}$

$COP=\frac{Q_c}{W},\quad COP_C=\frac{T_c}{T_h-T_c}$

$COP_h=\frac{Q_h}{W},\quad COP_{h,C}=\frac{T_h}{T_h-T_c}$

$\langle E_i\rangle=\frac{1}{2}kT,\quad U=\frac{f}{2}NkT$

$\Delta S_{total}=Q\left(\frac{1}{T_c}-\frac{1}{T_h}\right)$

$J=-D\frac{dc}{dx}$

$x_{rms}=\sqrt{2Dt}$

$D=\mu kT$

$F_d=6\pi\eta r v$

$Q=\frac{\pi r^4\Delta p}{8\eta L}$

$F=\sigma l,\quad F=2\sigma l\;\text{для плёнки}$

$h=\frac{2\sigma\cos\theta}{\rho g r}$

$\Delta p=\sigma\left(\frac{1}{R_1}+\frac{1}{R_2}\right);\quad \Delta p_{drop}=\frac{2\sigma}{R},\;\Delta p_{bubble}=\frac{4\sigma}{R}$

$\rho_v=\frac{m_v}{V}=\frac{eM_v}{RT}$

$\varphi=100\%\cdot\frac{e}{e_s(T)}$

$\Delta E=\sigma\Delta A$

$T=T_a+(T_0-T_a)e^{-kt}$

$pV^s=\mathrm{const},\qquad A=\frac{p_2V_2-p_1V_1}{1-s}\quad(s\ne1)$

$\eta=1-\frac{1}{r^{\gamma-1}},\qquad r=\frac{V_{\max}}{V_{\min}}$

$\left(p+\frac{a\nu^2}{V^2}\right)(V-\nu b)=\nu RT$

$Z=\frac{pV}{\nu RT}=\frac{pv}{RT}$

$\Delta S_{\mathrm{mix}}=-R\sum_i\nu_i\ln x_i,\qquad x_i=\frac{\nu_i}{\sum_j\nu_j}$

$\Delta S=\frac{Q_{\mathrm{rev}}}{T_{\mathrm{tr}}}=\frac{mL}{T_{\mathrm{tr}}}$

$H=U+pV,\qquad \Delta H=\nu C_p\Delta T$

$\eta=1-\frac{r_c^{\gamma}-1}{\gamma(r_c-1)r^{\gamma-1}}$