You can describe kinetic energy and the potential energy of motion to get your answer.
Answer:
answer is (c) density is not a characteristics of vibration.
hope it is right answer for it!!
If the group of all forces acting on an object is balanced,
then the effect of all of them is the same as if there were
no forces at all on the object. In that case, the object
continues moving in a straight line at a constant speed.
radio waves bc they have the longest wave lenthgs in a magnetic spectrum
