【简答题】Newton's second law says: the acceleration of an object is directly proportional to the net force acting on it and is inversely proportional to its ________. (one word)
【简答题】translate newton's second law
【判断题】运动方程的基础是牛顿第二定律。The basis of the equation of motion is Newton's second law.
【单选题】某些护士留短发。因此,某些留短发的人穿白衣服。下列哪项如果是真,足以佐证以上论述的正确性?( )
【单选题】三相可控整流触发电路调试时,首先要检查三相同步电压波形,再检查三相锯齿波波形,最后检查( )。 A.同步变压器的输出波形 B.整流变压器的输出波形 C.晶闸管两端的电压波形 D.输出双脉冲的波形
【判断题】Python是一种跨平台、开源、免费的高级动态编程语言。
【判断题】The Newton's second law for ratation is given by .
【判断题】将大量中度和重度的死可燃物集中烧除,一般采取 计划烧除。( )
【判断题】Newton's Second Law in angular form is that the net torque applied on a particle is the reason for changing angular momentum l of the particle, and is given by .
【单选题】砼在长期荷载作用下,随时间而增长的变形称为