Upwelling
only happens in the open sea
happens when water sinks toward the ocean floor
happens when water rises to replace moving surface water
is caused by breaks or disruptions in a longshore current

What is the length x of the side of the triangle below? (hint: use the cosine function)

Wavelength, frequency, and energy are related. what happens to a wave as it’s wavelength gets shorter?

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.