Q$2$

Oil$(=800\frac{kg}{m^3})$ flows

in the pipe shown.

The manometer fluid

is mercury $(=13\mathrm{.}6{10}^3\frac{kg}{m^3})$

Caiculat the pressure

drop $p=p_1-p_2$

Express $p$ in terms

of: the head loss of Oil'

the head loss of water