2 (a) Power can be calculated from the equation Derive this equation, starting from the definition of power.[1](b) A cyclist pedaling along a horizontal road provides 200 W of useful power. The cyclist reaches a steady speed of 5.0 m s-1Determine the value of the drag force against ...
aThe relationship shown in the first equation signifies that the effective power conversion in the case of viscous flow consists of a part from the pressure distribution on the bucket surface and a part from the direct frictional force. 在first等式signifi显示的关系ES有效功率转换在黏fl...
aThe power given in equation (26) for the frictionless flow depends on the operating condition and especially on the specific circumferential velocity, which is defined by 在式给的力量(26)为无磨擦的flow取决于操作条件,并且特别是在specific周围速度,是defined[translate]...
there are still some deficiencies and space for further research. First, the existing empirical evidence, regarding the perception of air pollution, mostly derives from developed countries, while evidence from developing countries is relatively rare [11]. The explanatory power of pertinent research findi...
The Bernardi battery heat generation rate calculation equation is commonly used in numerical models. However, to optimize the efficiency of the coupling calculation of the electric field and the thermal field, some researchers use the heat generation power of a single battery as a fixed value. ...
Answer to: Determine if the following statements are correct. When x is to the power of 1, the answer is x. When x is to the power of zero, the...
Which of the following equations are dimensionally correct? (a) v_{f}=v_{i}+ax (b) y=(2m) cos (kx), where k=2m^{-1}. What is power factor? What are the applications of power factor? Show that the units 1 V...
Equation 7 whereuhas zero divergence and is parallel to D; that is,u.n= 0 on D. We use the theorem without proof. For details and a proof of this theorem, refer to Section 1.3 of Chorin and Marsden 1993. This theorem states that any vector field can be decomposed into the...
Demonstrate that the power equation for an inductive impedance can be obtained through its voltage and current in the time domain. p(t)=v(t)i(t)There are 3 steps to solve this one. Solution Share Step 1 Step1: Voltage and Current in an In...
We thus have an equation for the particle density n, which varies with height, but which has a derivative which is proportional to itself. Now a function which has a derivative proportional to itself is an exponential, and the solution of this differential equation is n=n_0e^{−mgh/kT}...