I'm not too sure what your asking but here are two answers that may help.
The ear drum amplifies the vibrations.
The cochlea changes vibrations into electric signals.
        
             
        
        
        
First, foremost, and most critically, you must look at the graph, and critically 
examine its behavior from just before until just after the 5-seconds point.
Without that ability ... since the graph is nowhere to be found ... I am hardly
in a position to assist you in the process.
        
             
        
        
        
Answer:
Balanced forces: When a number of forces acting on a body do not cause any change in its state of rest or of uniform motion along a straight line then the forces are said to be balanced forces. In other words, a body is said to be underbalanced forced when the resulting force acting on the body is zero.
The balanced forces:
⋅ Cannot set any stationary body into motion.
⋅ May change the shape and size of soft objects.
⋅ Cannot change the speed/velocity of a moving body.
Unbalanced forces:
When the resultant of all the forces acting on a body is not zero, then forces are called unbalanced forces.
Example:
⋅ Game of tug of war: When the forces exerted by both the teams are equal, then the rope does not move. But, if the force applied by team A is greater than team B, then the rope, as well as members of the weaker team, i.e., B, will be pulled towards A. The unbalanced force can (a) Set a stationary body in motion. 
⋅ Set a moving body at rest.
⋅ Change the direction of motion.
Explanation:
give me an one thanks please 
 
        
             
        
        
        
Answer
given,
before collision
mass of car A = m_a = 1300 kg
velocity of car A = v_a  = 35 mph
mass of car B = m_b= 1000 kg
velocity of car B = v_b  = 25 mph
after collision 
V_a = 30 mph
V_b = 31.5 mph
Initial momentum



final momentum



here  initial momentum is equal to the final momentum of the car.
hence, momentum is conserved in the collision.