PLEASE HELP ASAP A young woman is sitting on the edge of a seesaw that is balanced on the other end. The seesaw is 10.0 m
long and the fulcrum (which acts as the pivot point) is at the midpoint of its
length. If her mass is 40.0 kg, how much torque is she applying?

Working alone at its constant rate, pump x pumped out ¼ of the water in a tank in 2 hours. then pumps y and z started working and the three pumps, working simultaneously at their respective constant rates, pumped out the rest of the water in 3 hours. if pump y, working alone at its constant rate, would have taken 18 hours to pump out the rest of the water, how many hours would it have taken pump z, working alone at its constant rate, to pump out all of the water that was pumped out of the tank? a) 6b) 12c) 15d) 18e) 24