AP (Advanced Placement) Physics(BC): Questions 626  629 of 921
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Question number: 626
» Force and Newton's Law of Motion
Question
The mass of a hypothetical planet is four times mass of the earth and a radius of hypothetic planet is half of the radius of the earth. If the gravitational acceleration is at the surface of earth, then what is the gravitational acceleration at surface of hypothetical planet?
Choices
Choice (5)  Response  

a. 


b. 


c. 


d. 


e.  Question does not provide sufficient data or is vague 

Question number: 627
» Kinematics in One and Two Dimensions
Question
A graph of acceleration vs time is curved line. Which of the following physical quantity is represented by area under the curve in specific time interval?
Choices
Choice (5)  Response  

a.  Average acceleration 

b.  Distance 

c.  Average velocity 

d.  None of the above 

e.  All of the above 

Question number: 628
Question
A bomb of mass explodes into two pieces of masses and . The velocity of mass is . What is the kinetic energy of piece of mass in joule?
Choices
Choice (5)  Response  

a. 


b. 


c. 


d. 


e.  Question does not provide sufficient data or is vague 

Question number: 629
Question
Water flows horizontally from a larger pipe with a diameter of to a smaller pipe with a diameter of . The smaller pipe then curves upward, and the water flows at a level higher, as shown in figure. If the speed of the water is in the larger pipe, what is the speed of the water in the smaller pipe as it flows at the higher level?
Choices
Choice (5)  Response  

a. 


b. 


c. 


d. 


e.  Question does not provide sufficient data or is vague 
