Answer:

Step-by-step explanation:
The work is define as the integral of the force times distance. So we have:

Now, we can write the force in terms of density.

V is the volume (V=2*1*1=2 m³)
So the work will be:

The limit of integration is between 0 and 0.5 because we want to pump half of the water out of the aquarium.


I hope it helps you!
I’m not sure I’m just guessing but maybe 7x minus 35
The answer is 21 your welcome
2.54 x 0.2=0.508
answer is choice C.3