An arrow is shot from a height of 1.5 m toward a cliff of height H. It is shot with a velocity of 30 m/s at an angle of 60° abov
e the horizontal. It lands on the top edge of the cliff 4.0 s later. (a) What is the height of the cliff? (b) What is the maximum height reached by the arrow along its trajectory? (c) What is the arrow's impact speed just before hitting the cliff?
The smooth mountain rock surface makes a higher runoff rate than a vegetation surface. Differ form soil; mountain rocks have small fractures in the surface that absorb a little water but not that much.
The answer is oral language skills which refer to the ability of one to break down the speech in smaller units of a sentence and syllable. This is vital in jobs which require people to communicate with others like politicians, negotiators, salesmen, etc.
