Question

4. [1pt]
A.

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B.

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C.

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The three tanks shown above are filled with water to an equal depth. All the tanks have an equal height. Tank A has the greatest surface area at the bottom, tank B the middle and tank C the least.
(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 force exerted by the water on the bottom of tank C is ... the force exerted by the water on the bottom of tank A
B) The pressure at the bottom of tank A is ... the pressure at the bottom of tank B
C) The water in tank C exerts an upward force on the sides of the tank.
D) The pressure exerted on the bottom of tank A is greater than for the other tanks.
E) The force due to the water on the bottom of tank B is .... the weight of the water in the tank.

Answer:  

5. [1pt]
A car misses a turn, sinks into a shallow lake, coming to rest on its side with the door horizontal and at a depth of 11.1 m. If the area of the car door is 0.60 m², what is the force exerted on the outside of the door by the water? Note: 1 atm = 101 kPa.

Answer:  

6. [1pt]
What is the force exerted on the inside of the door by the air, assuming the inside of the car is at atmospheric pressure?  

Answer 1

4.

A.) .... is Less the pressure.....

B) ....equal.........

C) False

D) False

E) ..equal...

5. we have:

$F = PA = \rho g h A = (1000)(9.81)(11.1)(0.60) = 65334.6 N$