AP (Advanced Placement) Physics(BC): Questions 382  384 of 921
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Question number: 382
Question
Freshwater lake has a surface area of and a depth of, and freshwater lake has a surface area of and a depth of . Compare the total pressure at the bottom of lake with that of lake .
Choices
Choice (5)  Response  

a.  Lake A has greater pressure at the bottom, because it has a greater volume of water. 

b.  Lake A has greater pressure at the bottom, because it has a greater depth. 

c.  Lake B has greater pressure at the bottom, because it has a greater surface area. 

d.  The two lakes have equal pressure at the bottom. 

e.  All of the above 

Question number: 383
Question
A battery with an of has an internal resistance of . What is the current through the battery when it is connected to an external resistance of ?
Choices
Choice (5)  Response  

a. 


b. 


c. 


d. 


e.  All of the above 

Question number: 384
Question
A car moving at a speed is brought to rest in time by a force . To stop the car in one half the time , what force is required?
Choices
Choice (5)  Response  

a.  Force must be one fourth as large as . 

b.  Force must be twice as large as . 

c.  The forces required to stop the car are the same in both situations. 

d.  Force must be half as large as . 

e.  Question does not provide sufficient data or is vague 
