spheer with radius=100ft, full av sumthun that wae=40 pounds / kubik ft
volume=(4/3)pi*rad^3=(4*3.14159265/3)* 10^6 kubik ft
=4.1887902*10^6 kubik ft
wate=40* (abuv number)=1.67551608*10^8 pounds
If yu hav dumb pump that punp all that tu top av tank, yu raez it 200ft
werk=(1.67551608*10^8 pounds)*200ft
=3.35103216*10^10 foot-pounds