Energy of the waves are redistributed to form a resultant wave with amplitude given by the summation of individual wave's amplitude.
<span>If the two waves are of same frequency, speed and amplitude and travelling in opposite direction den stationary waves are form.</span>
Answer:
Sometimes may cause involuntary responses like twitching
Explanation:
I think the answer to this problem I believe would probably be B. learned optimism. I think it's the closest answer...I THINK
We have the equation of motion 
, where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.
Here displacement = 135 m, Initial velocity = 0 m/s, acceleration = 9.81 
Substituting
A box falls out of a stationary helicopter hovering 135 m above the ground will take 5.25 seconds to reach the ground.
<span>
adapt to a changing environment
</span><span>organisms that possess heritable traits that enable them to better adapt to their environment </span>
