英文的物理题A certain rope has a length of 8m and a mass of 1.6kg.It is fixed on one end and held fixed at the other with a tension of 50N.What is the speed of waves on this rope?

英文的物理题A certain rope has a length of 8m and a mass of 1.6kg.It is fixed on one end and held fixed at the other with a tension of 50N.What is the speed of waves on this rope? 一道关于机械波的物理题A rope is stretched with a tension of 234 N.The rope is of length 10.6 m with a mass of 146 g.Two pulses are formed at opposite ends of the rope,separated in time by 40.0 ms.Determine how far from the farther end of t 200分求一道物理题,求懂英文的高手来帮下忙A certain isotope has 80 protons and 122 neutrons in its nucleus.Identify the element involved and find the atomic and mass numbers.Atomic number=Mass number= 麻烦帮解一道英文版物理题A box of mass 2kg is pulled up a rough plane face by means of a light rope.The plane is inclined at an angle 20°to the horizontal,as shown in the figure.The tension in the rope is 18N .The coefficient of friction throw me a rope rope的意思 rope的中文意思 rope的同类词 a certain 我知道play a skipping-rope是跳绳的意思,那么play with a skipping-rope是什么意思呢 一道相对论的英文物理题,求上过大物的可以进来解答一下.a spaceship whose rest length is 350m has a speed of 0.82c with respect to a certain reference frame.a micrometeorite,also with a speed of 0.82c in this frame,passes the spa 关于加速的的简单英文物理题At a certain instant a moving object comes tomomentary rest.Is it accelerating at that moment?1.No2.Acceleration is unrelated to speed,so thequestion does not make sense.3.Yes4.There is no way to tell from the i a rope hanging 啥意思 跳绳是skip rope还是skip a rope cut the rope(割绳子）第三个银灰色的箱子英文是什么BOX? line,wire,rope的区别 请问a certain和certain a哪个是某一的意思? a certain man 和 the certain man 的区别这题怎样解说?-Mr.Wang,___want to see you this afternoon!-Who is it?a.a certain man b.a some manc.the certain man d.certain man