Suppose we are having an exceptionally weak tide (neap tide) right now. Approximately how long do we have to wait until we experience an exceptionally strong high tide (a spring tide)?

u=13

v=30

s/t=u+1\2at

=13+431/2

=13+265.5

=278.5

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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radiation warms things up temp rises convection currents air circ windy weather

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..