When warm water vapor is blown over land in the water cycle what happens?

Can someone explain to me how to do this problem ?

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below.your friend goes first,and you follow after he has dropped a distance of 2.0m.when your friend hits the water,is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?