论文部分内容阅读
一、纯冰熔化成水后液面不变,如图1设净的质量为m,没入水中的体积V_1总体积为V_冰,化成水后体积为V_水.A.根据物体的浮沉条件,则ρ_冰ρ_冰g=ρ_水v_1g,所以V_1=ρ_冰/ρ_水·V_冰(A)B.根据冰熔化成水后质量不变,则:ρ_冰/V_冰=ρ_水/V_水所以V_水=ρ_冰/ρ_水·V_冰(b)比较A、B两式可得,冰化成水的体积与冰在水面漂浮时浸在水下体积相等,固冰化成水后,液面不变.
First, the pure ice melting into water after the same, as shown in Figure 1 set the net mass of m, did not into the water volume V_1 total volume of V_ ice, into the water after the volume of V_ water. A. Float according to the object Then ρ_ ice ρ_ ice g = ρ_water v_1g, so V_1 = ρ_ ice / ρ_water V_ ice (A) B. According to the mass of ice melting into water, then: ρ_ ice / V_ ice = ρ_water / V_water So V_water = ρ_ ice / ρ_water V_ ice (b) Comparison A, B Both types of available, the volume of ice into water and ice floating on the water surface When immersed in the water under the same volume, solidified ice into water, the liquid level unchanged.