A trapezoid shaped dam is 100 meters wide at the top, 80 meters wide at the bottom, and 40 meters deep. To find the total force exerted on the dam by the water, how would you set up the integral?

Asubmarine has a "crush depth" (that is, the depth at which water pressure will crush the submarine) of 250 m. what is the approximate pressure (water plus atmospheric) at this depth? (recall that the density of seawater is 1025 kg/m3, g = 9.81 m/s2, and 1 kg/(ms2) = 1 pa = 9.8692 10-6 atm.) a. 34.8 atm b. 24.8 atm c. 25.8 atm d. 7.8 atm

How many atoms of nitrogen are in the chemical formula ni(w on

Are good conductors of heat also good conductors of electricity? explain your answer.