Identify the simple machines that make up tweezers and nail clippers

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

=force × distance a. work b. velocity c. pressure d. momentum

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