In the Theory of Relativity the length of an object depends on how fast it is moving (its velocity v) with respect to an observer. If an object is 18 meters long when it is at rest the function L(v) which gives its length is L(v) = 18/1 - v2 c2 where c is the speed of light Calculate the length of this object for velocities which are the following percentages of c: L(0.3c) = L(0.5c) = L(0.7c) = meters meters meters