13.[1pt] A. B. C. The three tanks shown above are filled with water to an equal

Question

13.[1pt] A. B. C. The three tanks shown above are filled with water to an equal depth. All the tanks have an equal height. Tank A has the middle surface area at the bottom, tank B has the least and tank C has the greatest area at the bottom. (Select T-True, F-False, G-Greater than, L-Less than, E-Equal to. If the first is F the second L and the rest G, enter FLGGGG).

A) The air pressure right at the top surface of water in tank A is .... the air pressure right at the top surface of water in tank C

B) The total force exerted by the water on the bottom of tank C is ... the total force exerted by the water on the bottom of tank B

C) The water in tank B exerts a downward component of force on the sides of the tank.

D) The pressure at the bottom of tank C is ... the pressure at the bottom of tank B

E) The pressure exerted on the bottom of tank C is greater than for the other tanks.

A.

Explanation / Answer

EGTEF.

(A) Pressure above is same for all surfaces as it is Atmospheric pressure.
(B) Pressure at bottom of all tanks is same as the level of water in all tanks is same i.e h*d*g.
   but Force = pressure * Area.
   more area ~more force.
(C)  Water exerts pressure on wallls of container. as it is tilted it will have a component of force downwards.
(D) Pressure is same at bottom of all tanks. = h*d*g. h is height of water level,d is density of water,g is acclr. due to gravity.

(E) Pressure is equal at bottom of all tanks.

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