Which of the following statements about ocean circulation is true? a. Water circulates in the direction in which the wind blows.

b. Water with higher salinity sinks below water with lower salinity.

c. Water that is warmed at the surface sinks, forcing cold water to rise from below.

d. The pattern of ocean circulation remains constant throughout the whole year.

Apossible explanation for a set of facts that can be tested by further investigation is called

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

Determine the maximum r-value of the polar equation r =3+3 cos 0