Answer:
The work W required to pump the oir out of the spout is
Step-by-step explanation:
We are given the density of the oil, and we can calculate the volume of the oil as
because <em>the tank is half full</em>.
The we can <u>calculate the oil mass</u> as
Now, to calculate the work W necessary to pump the oil out, we have that
<em>where m is already calculated, g is given in the problem, and h goes from 0m to 1m</em>.
Finally we can calculate the <u>work W:</u>
Therefore
is the work required to pump the oil out of the spout.