If the swimmer's mass is 62kg, what is: a. the height of the board above the water?
b. the swimmer's velocity just before he hits the water?

Wind or electric energy force force of friction

Sound energy is produced when an object vibrates. examples are 1- a balloon popping2-a whistle3- a waterfall

I'm pretty sure the answer is c 

Answer: 1.4 seconds which is the third optionexplanation: current is defined as the flow of charge per timetherefore, the equation that relates current, charge and time can be expressed as follows: i = δq / δtwhere: i is the current given = 1.8 ampereδq is the charge given = 2.5 coulombδt is the time required for the flow of the given charges to give the 1.8 ampere.substitute with the givens in the above equation to get the time as follows: 1.8 = 2.5 / δtδt = 2.5 / 1.8 = 1.38888 which is approximately 1.4 secondshope this was !