A student was given an unknown sample containing one or more elements. The line spectrum of each of the possible elements and the spectrum of his unknown sample are given below. Which elements did his unknown sample contain?

people flirt to show their affection towards someone in a less forward way then telling. they want the other person to guess what they’re feeling to have the other person also start to like them

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.