You get out of school and walk north for 20 minutes to travel 1.6 km what is your average velocity?

Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel

Which system of units is used by only a small number of countries in the world, including the u.s.

Why is the basic problem of economic,scarcity, a universal problem?