Create a bucket by rotating around the y axis the curve y = 2 ln ( x − 1 ) y=2ln(x-1) from y = 0 to y = 10. If this bucket contains a liquid with density 780 kg/m3 filled to a height of 6 meters, find the work required to pump the liquid out of this bucket (over the top edge). Use 9.8 m/s2 for gravity.

Which accurately compares concave and convex lenses?

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i. e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.

In an experiment, how can i change human errors? be specific.