A mass M is hanging from a rope of length L and mass m. A student gives the mass a quick horizontal shake to set up a wave which
travels along the rope.Give an expression, in terms of the provided variables, for the speed of the wave at the bottom of the string. You may assume the mass of the rope m is much less than M
If the object, ends up with a positive charge, then it is missing electrons. if it is missing electrons, then it must have been removed form the object during the rubbing process.