It is tornado that is formed over a water body, usually an ocean or sea.They are similar to the mesocyclonic thunderstorm tornadoes but are formed over a water body. A waterspout is not a destructive tornado as it spans itself over less than 2 km. Tornadoes of these type cause damage that tends to be EF2 or less.
The impulse of force is commonly used to calculate forces in collisions. Active formula Impulse = Average force x time = mass x change in velocity. Enter data below and then click on the desired quantity in the active formula above.
Impulse also depends on how long the force is applied. More time, more impulse. Impulse is also directly proportional to the time for which the force is applied - twice as long means twice the impulse, three times as long means three times the impulse. So, the impulse exerted on an object depends directly on both how much force is applied and for how long the force is applied. Impulse is the product of the force and the time. Impulse = (force)(time) = Ft. Impulse is a vector quantity. It has the same direction as the applied force. The fact that impulse depends on both force and time means that there is more than one way to apply a large impulse to an object - you can apply a very large force for a reasonable time, or apply a regular force for a very long time (or both!).