Answer:
Increases
Explanation:
The kinetic energy _____ (Increses)
as the roller coaster goes downhill
  
        
                    
             
        
        
        
The answer to this question is B I think
        
                    
             
        
        
        
a. The disk starts at rest, so its angular displacement at time  is
 is

It rotates 44.5 rad in this time, so we have

b. Since acceleration is constant, the average angular velocity is

where  is the angular velocity achieved after 6.00 s. The velocity of the disk at time
 is the angular velocity achieved after 6.00 s. The velocity of the disk at time  is
 is

so we have

making the average velocity

Another way to find the average velocity is to compute it directly via

c. We already found this using the first method in part (b),

d. We already know

so this is just a matter of plugging in  . We get
. We get

Or to make things slightly more interesting, we could have taken the end of the first 6.00 s interval to be the start of the next 6.00 s interval, so that

Then for  we would get the same
 we would get the same  .
.
 
        
             
        
        
        
Answer:
A
Explanation:
If the object is moving at a constant speed, the object isn't accelerating as the velocity doesn't change.
 
        
             
        
        
        
Bourne believed that an object would float or sink at will as long as he could <span>manipulate the effect's of buoyancy which control and object to sink or float. Hope this helps!
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