With a help of an activity show that air exerts pressure. Define a cyclone. How many hours in advance a Cylcone warning is announced?
Answers
answer
pressure exerted by bottom of the container
Explanation:
Take a balloon and tie it at the lower end of a glass tube and hold it vertically as in figure
(a). Pour some water in the tube, the balloon bulges out as in fig
(b) because the water column exerts pressure at its bottom.
Observation - Force on the balloon is equal to the weight of the water column which is called Thrust. Also, the pressure exerted by the water P = Thrust/Area of the bottom of the tube.
This shows that a liquid exerts pressure at the bottom of the container in which it is kept.
cyclone is a region of low atmospheric pressure which occurs in the hot oceans of temperate and tropical latitudes
The Third Stage warning is known as "CYCLONE WARNING" issued at least 24 hours in advance of the expected commencement of adverse weather over the coastal areas.
