Answer:
A is the answer
Explanation:
That's why it ranges from big to small.
Answer:They may cause motion to change
Explanation:They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving. Since force cause changes in the speed or direction of an object, we can say that forces cause changes in velocity. Remember that acceleration is a change in velocity.
Answer:
Explanation:
From the question, acceleration from 
in 10 seconds.
Acceleration function can be written as:-
From the acceleration equation, we can obtain the velocity equation:
We calculate velocity after 10sec from the above v(t) as 
.
To obtain distance travelled after 10 seconds:-
Therefore 200m is for 10seconds, and next 200m at 30m/s
Total time=
If a cell grows beyond a certain size, materials will not be able to pass through the membrane fast enough to accommodate the inside of the cell. So when the cell reaches a size too large, it will divide into smaller cells in order to maintain a surface are/volume ratio that is more favorable to the functioning of the cell. Therefore, cells remain small in order to survive.
"B" When an object moves away from us, the light is shifted to the red end of the spectrum, as its wavelengths get longer.
