. A gas is placed inside a container. Which action will increase in the gas pressure?

Me plz i don’t know the charges on each of these

What is special about a dc circuit ?

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