What is the total absolute force felt on the top of the plug at the bottom of the

tank show below?

h$1=10$ cm

h$2=45$ cm

h$3=27$ cm

SGwater $=1$

SGoil $=0\mathrm{.}79$

SGglycerin $=1\mathrm{.}26$

A plug $=4$ x $10-5$ m $2$

Patm $=101$ kPa

h $1$

h $2$

oil

water

glycerinh $3$