11판/5. 힘과 운동 I

5-61 할리데이 11판 솔루션 일반물리학

짱세디럭스 2024. 2. 23. 21:55
{mmax=22300[kg]V0=7682[L] \begin{cases} m_{\max}&=22300\ut{kg}\\ V_0&=7682\ut{L}\\ \end{cases} (a,b)\ab{a,b} kA=1.77[kg/L],k_A=1.77\ut{kg/L}, (a)\ab{a} mA0=kAV0=1.77[kg/L]7682[L]=13597.14[kg] \begin{aligned} m_{A0}&=k_AV_0\\ &=1.77\ut{kg/L}\cdot7682\ut{L}\\ &=13597.14\ut{kg}\\ \end{aligned} (b)\ab{b} ΔV=ΔmkA=mmaxmA0kA=870286177[L]4916.870056497175[L]4917[L] \begin{aligned} \Delta V&=\frac{\Delta m}{k_A}\\ &=\frac{m_{\max}-m_{A0}}{k_A}\\ &=\frac{870286}{177}\ut{L}\\ &\approx 4916.870056497175\ut{L}\\ &\approx 4917\ut{L}\\ \end{aligned} (c,d,e)\ab{c,d,e} 1[lb]=0.45359237[kg],1\ut{lb}=0.45359237\ut{kg}, kB=1.771[lb/L]=1.771[lb/L]0.45359237[kg/lb]=0.80331208727[kg/L] \begin{aligned} k_B&=1.771\ut{lb/L}\\ &=1.771\ut{lb/L}\cdot0.45359237\ut{kg/lb}\\ &=0.80331208727\ut{kg/L} \end{aligned} (c)\ab{c} mB0=kBV0=0.80331208727[kg/L]7682[L]=6171.04345440814[kg]6171[kg] \begin{aligned} m_{B0}&=k_BV_0\\ &=0.80331208727\ut{kg/L}\cdot7682\ut{L}\\ &=6171.04345440814\ut{kg}\\ &\approx 6171\ut{kg}\\ \end{aligned} (d)\ab{d} ΔV=ΔmkB=mmaxmB0kB=80644782727959322679618500[L]35558.2624672277[L]35558[L] \begin{aligned} \Delta V&=\frac{\Delta m}{k_B}\\ &=\frac{m_{\max}-m_{B0}}{k_B}\\ &=\frac{806447827279593}{22679618500}\ut{L}\\ &\approx 35558.2624672277\ut{L}\\ &\approx 35558\ut{L}\\ \end{aligned} (e)\ab{e} Ans=V0+ΔVVmax=V0+ΔVmmaxkB=7682[L]+870286177[L]22300[kg]0.80331208727[kg/L]=2326475265735133000000000.4532388984473017545.323889844730175%45.32% \begin{aligned} \Ans&=\frac{V_0+\Delta V}{V_{\max}}\\ &=\frac{V_0+\Delta V}{\frac{m_{\max}}{k_B}}\\ &=\frac{7682\ut{L}+\frac{870286}{177}\ut{L}}{22300\ut{kg}}\cdot0.80331208727\ut{kg/L}\\ &=\frac{232647526573}{513300000000}\\ &\approx 0.45323889844730175\\ &\approx 45.323889844730175\% \\ &\approx 45.32\% \\ \end{aligned}