### math equation

Posted:

**Thu Oct 06, 2016 11:10 am**Hello, from Portugal

I´m new in water rockets, and want learn more. I hope in this forum you could help to understand some math equation, like this one:

h=(Mi/Mr)*(Mi/Mr)*(Pi/density of water*g)

I´m new in water rockets, and want learn more. I hope in this forum you could help to understand some math equation, like this one:

h=(Mi/Mr)*(Mi/Mr)*(Pi/density of water*g)