At the right edge of the figure, the fluid is relatively dense and has a relatively high velocity, causing a large outflow of fluid from the control volume (the red parcel). At the left edge, the density is relatively low and the velocity is relatively low, causing a small inflow of ...
1.An expression of Newton's second law that relates forces, displacements, and their derivatives for a mechanical system. 2.For the respiratory system, an equation that relates the forces involved in breathing to the displacements they produce. Typically, pressure differences are used to represent ...
百度试题 结果1 题目 In the momentum equation, for steady flow the net force on the fluid mass is equal to the net rate of outflow of momentum across the control surface. ()A.对B.错 相关知识点: 试题来源: 解析 A 反馈 收藏 ...
When the momentum equation is used to calculate the resultant force of the fluid on the object, the pressure at the inlet and outlet should be ( ) A absolute pressure B gage pressure C Atmospheric pressure D vacuum pressure 相关知识点: ...
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aThe conservation of momentum in an inertial (non-accelerating) reference frame may be described by equation (10). In this equation, P is the static pressure, s is the stress tensor (described by equation (11)), and and . are the gravitational body force and external body forces, respectiv...
Next we consider the momentum equation given by Eq. (2.3.9). We neglect viscous effects and apply the assumption of small density perturbations to give ∂ρvi∂t+∂ρvivj+pij∂xj≈ρo∂vi∂t+∂po+p′∂xi+ρo∂vivj∂xj≈0 The first term on the right is linearly ...
The kinetic energy K of the particle is related to the particle rest mass m0 and momentum p by (34)K=p22m0. 4. The solution of the wave equationΨ (r, t) as a function of position rx,y,z and time t should be linear. If Ψ1(r, t) and Ψ2(r, t) are solutions of the ...
Now that you know the maximum amount of energy you can acquire from matter, it's time to estimate how much of it you need for intergalactic travel. Appropriate formulas are derived from the conservation of momentum and energy principles. For the relativistic case: M=m(eaT/c−1)M=m(eaT...
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