An object moves along the x axis according to the equation x(t) = (2.70t2 - 2.00t + 3.00) m.(a) Determine the average speed between t = 1.70 s and t = 2.90 s.(b) Determine the instantaneous speed at t = 1.70 s and at t = 2.90 s.(c) Determine the aver

什么英文单词的英文解释是an object that moves around a bigger object in space a object 还是 an object 英语翻译Strange things happen to an object when it moves rapidly .The object weights more .An object moving at 86 percent of the speed of light is twice as it is at rest .A stick appears shorter .A clock runs more slowly .A man would not age so f An object with an initial velocity of 4m/s moves along a straight axis uder constant acceleration.Three seconds later ,its velocity is 14m/s.How far did it travel during this time? Object reference not set to an instance of an object. moves 英语翻译When an object is not moving ,it is at rest.It will stay that way unless something makes it move.The power that makes other things move is called a force.A force can be a push or a pull.It changes the object's position.When aforce moves a money is not an object翻译 recover an object from the chest depth object object Object reference not set to an instance of an object.请问, Object reference not set to an instance of an object这句英语是什么意思 An object moves along the x axis according to the equation x(t) = (2.70t2 - 2.00t + 3.00) m.(a) Determine the average speed between t = 1.70 s and t = 2.90 s.(b) Determine the instantaneous speed at t = 1.70 s and at t = 2.90 s.(c) Determine the aver 英语翻译if we know that a force of 4N acts on an object while it moves 2 meters,can we calculate how much work was done with no other information?explain.如果可以的话就顺便帮我做做~我会从灵魂深处感谢您的! 翻译：The changes which take place in an object. You can get nowhere without an object in an object kept as a reminder的同义词