consider a earth which is completely round......there is no mountain or sea......
we know that the value of g is more at poles than at equator........we also know that the value of g is more at sea level than that over a hill.............so we may consider that the pole is equivalent to sea level if the equator is equivalent to the top of hill.........now we know that any big river like Mississippi and others flow from the pole to the equator.......relate it to the hill n sea level problem.....it is equivalent to water flowing from sea level to the top of hill....[1][1][1][1]
how do you explain this???????????????
P.S.: anyone except Aveek can post answer....
49yeah right................
i'll give another hint......as the earth is completely round.....so deviation of g at eq & pol r due to rotation.....it is sumthing from the derivation of the deviation of g due to rotation........
49yeah u r correct.........the case with river nle requires a thought.......
thinking..................[1][1][1][1][1]
still thinking.......
i think we can argue that river nile must experience an opp forcee of more magntude......but which force[2][3][4][5][6][7]
i think it has cut such deep gorges into its bank or since the land must be sloping towards the poles..........
23but thats not the case with all rivers.....i dont think that this reason can define the path of rivers ...i mean for example ..how will u define the path of the river nile ...wich actually cuts the equator and tends to go towards the pole ?? i mean ur soln cant be generalized ..there are various factors that hav strong impact on the direction of river flow ...like the source i.e mountains' location...
49
nw we all often overlook it bt the tangential component of mω2r i.e mω2sin a drives it towards equator...........
so silly na?????????
23btw wats d actual logic ?? and why does it not apply to all rivers?and yeah earth is like an ellipsoid bcz of earth's rotation ...so i think it will be unfair to still consider rotation if u consider earth as a sphere as in #10 ...never mind it though
23i think this logic wont hold true that since equator is a region wid gr8er PE than poles,then rivers shud flow frm eq to poles .. .....bcz if we apply this logic ...then the equator would become dry beaches!!!
i
49no no think more basic.....it is directly from the chapter gravitation the part which is mostly overlooked by books and students.......
23does it hav any thing to do with the fact that the electric field will be mostly perpendicular to the path of the mississippi river that u hav mentioned.......or earth's rotation ?
49i'll upload soln tomorrow...........gotta go nw........till then think india think............
