R-Red, O-orange Y-yellow G-green B-blue P-purple B-brown

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

How much energy will be transferred to your eardrum while listening to this sound for 1.0 min?

If frequency goes down, what happens to wavelength? does it get shorter or longer?