知到答案工程流体力学智慧树答案_2022年

第四章

A fixed coordinate system is non-inertial. True or False? （ ）
答案:错
According to the sign convention, mass flowrate out of the control volume is negative and the mass flowrate in is positive. True or False? （ ）
答案:错
When using Newton's second law applied across streamlines and the Bernoulli equation it is important to be sure ____. （ ）。 The Bernoulli equation can be written in terms of heights called what? （ ）。