一个实心球体浮在水面上,根据阿基米德原理,球体的浮力和球体排出水的重量相等。令Vs =…
- User
一个实心球体浮在水面上,根据阿基米德原理,球体的浮力和球体排出水的重量相等。令Vs = (4/3)πr^3为球的体积,Vω为球体局部浸入水中时排出水的体积。在静态平衡的状态下,球的重量和水的浮力相等, ρgVs = ρwgVw 或 sVs = Vw 其中是ρ球体密度,g是重力加速度,ρw是水的密度,s = ρ/ρw是球体材料的比重,它决定球体沉入水面的深度。 当s<0.5时球体有高度为h部分的体积在水下,当s>0.5时球体有高度为h部分的体积在水上 球体高度为h部分的体积为Vh=(π/3)(3rh^2-h^3).假设球体半径为r=10cm, 密度为ρ=0.638,Π=3.14,求球体浸入水中的深度为多少? (请自行取合适的初始值和初始区间,选用一种非线性方程求根算法求解。) 给出python代码,二分法
- Assistant
def f(h): Vh = (3.14/3)(310h2 - h3) Vs = (4/3)3.14(10**3) Vw = Vh + Vs s = 0.638/1000/1000/1000/10001000 V = Vw/1000/1000/1000/1000 # 将体积单位换成m^3 rho_w = 1000 rho = srho_w return rho9.8Vs - rho_w9.8*V
a = 0 b = 20 tolerance = 10**(-6)
while b-a > tolerance: c = (a+b) / 2 if f(c)*f(a) < 0: b = c elif f(c)*f(b) < 0: a = c print((a+b)/2) # 输出结果
Other models, same or similar prompt
Responses were produced in different, uncontrolled contexts (system prompts, settings, prior turns). This is not a benchmark.