The period of physical changes to sex characteristics that marks the beginning of adolescence in males and females is Puberty.
Answer:
v = 22.54 mph.
Explanation:
Given that,
Distance moved, d = 200 m
Time, t = 19.8 s
We need to find the runner's average speed.
We know that,
1 mile = 1609.34 m
200 m = 0.124 miles
19.8 seconds = 0.0055 h
So,
Speed = distance/time
So, the runner's average speed is 22.54 mph.
<em></em>Your answer is :<em>
A.
</em>
Groundwater.<em>
</em>
<span>b. less climatic variation between the summer and winter seasons in the middle and high latitudes
As the tilt becomes higher (approaches 24 degrees) there is greater variation between the summer and winter months, due to the fact that the tilt toward the sun in the summer and away from the sun in the winter are more pronounced. </span>
Answer:
and Ymax=25.8m
Explanation:
Velocity at any time is given by 
. but when the arrow is on the top its velocity is zero and if it is launched upward the angle is 90°, so.
At the maximun height, position is given by 
, replacing 
