All waves carry energy true or false?

Which changes of state do the labels represent? a: b: c:

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

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