18N+F3=-12N
F3=-30N
how did they find -30Nhow did they find negative end ​

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

Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.

Define the terms moral development and moral reasoning.