Which of the following is not a primary force which influences ocean currents ?
1) Magnetic fields of the earth
2) Heating by the sun
3) Gravity
4) Coriolis Force

Which of the following is NOT a force that influences the wind?

A. coriolis effect

B. magnetic field

C. pressure gradient

D. friction

a path of sargassum, an open ocean marine plant drifts westwardat 30 degree N in ocean current at a speed of v = 30 cm/s

Given:

acceleration (due to the coriolis force is ac = 2VΩEsinφ where Vis velocity of the patch

ΩE = 7.27 x 10^-5 s^-1 is the rotation rate of earth (equivalentto 360 degree per day)

φ is latitude

Q: what is acceleration of patch caused by coriolis force(gravity of g = 9.81 ms^-2 by ration g/ac) and how far would thepatch deflect after 1 hour (deflection of patch during time is d =1/2 act^2)

Which of these factors influence the magnitude of the Coriolis force?

a. wind speed                                                                                                         

b. latitude

c. wind direction

d. both wind speed and latitude