A) average acceleration = final velocity - initial velocity / time
 = 7700 - 0 / 11
 = 700ms^-2
B) force = mass x acceleration 
 = (3.05 x 105) x 700
 = 320.25 x 700
 = 224,175N
        
             
        
        
        
•THAT THE PROPAGATION OF SOUND WAVES NEED MEDIUM TO TRAVEL
•THE MEDIUM SHOULD POSSES ELASTICITY
•FOR THE FASTER PROPAGATION OF SOUND THE PARTICLES SHOULD BE VERY CLOSE TO EACH OTHER 
        
             
        
        
        
Answer:
 , the minus meaning west.
, the minus meaning west.
Explanation:
We know that linear momentum must be conserved, so it will be the same before ( ) and after (
) and after ( ) the explosion. We will take the east direction as positive.
) the explosion. We will take the east direction as positive.
Before the explosion we have  .
.
After the explosion we have pieces 1 and 2, so  .
.
These equations must be vectorial but since we look at the instants before and after the explosions and the bomb fragments in only 2 pieces the problem can be simplified in one dimension with direction east-west.
Since we know momentum must be conserved we have:

Which means (since we want  and
 and  ):
):

So for our values we have:

 
        
             
        
        
        
Answer:
Winner wins by 0.969 s
Explanation:
For the Porche:
Given:
Displacement of Porsche s = 400 m
Acceleration of Porsche a = 3.4 m/s^2
From Newton's second equation of motion,
 (u = 0 as the car was initially at rest)
 (u = 0 as the car was initially at rest)
Substituting the values into the equation, we have

= 235.29 / 3.4
t = 15.33 s
For the Honda:
Displacement of Honda = 310 m
Acceleration of Honda = 3 m/s^2
Applying Newton's second equation of motion
 (u = 0 for same reason)
 (u = 0 for same reason)
Substituting the values into the equation, we obtain

= 620 / 3
t = 14.37 s
Hence
The winner (honda) wins by a time interval of = 15.33 - 14.37    
=0.969 s
 
        
             
        
        
        
Answer:
Questions that cannot be answered through scientific investigation are those that relate to personal preference, moral values, the supernatural, or unmeasurable phenomena.