//Example 11.2
P=6.90*10^6;//Pressure (Pa)
r=0.150/2;//Radius of disk (m)
A=%pi*r^2;//Area of disk (m^2)
F=P*A;//Force (N)
printf('Force exerted on the flat end of the tank = %0.2e N',F)
//Openstax - College Physics
//Download for free at http://cnx.org/content/col11406/latest