Options: necessary centrifugal force may be obtained from the horizontal component weight of the train, to avoid frictional force between the tracks and wheels, necessary centripetal force may be obtained from the horizontal component of the weight of the train, the train may not fly off in the opposite direction
Which of the following international organisations has started the scheme 'Partnership for Peace' for a group of nations?
Options: Organisation of Petroleum Exporting Countries (OPEC), Economic and Social Commission for Asia and Pacific (ESCAP), North Atlantic Treaty Organisation (NATO), Organisations of African Unity (OAU)
The periodic rise and fall of the sea level on the earth, gives rise to tides. This is related to
Options: the position of the moon with reference to the earth and the gravitational pull exerted mainly by the moon and partly by the sun, infrared rays from the sun, ultraviolet rays from the sun, None of the above