Answer:
Which is a resource that the National Park Service manages?
A. memorials
B. wildlife refuges
Chemistry deals with the study of elements-- their properties, chemical reactions and their compounds. This science includes the study of how these elements or compounds are formed. The history of chemistry is divided to 4 periods.
Black Magic, Alchemy, Traditional Chemistry and Modern Chemistry comprised these periods.
How did the early chemists determine which of the substances are elements? Long time ago, chemists knew which substances could not be broken down and that mixtures are broken down through chemical means. Through the said process, they were able to identify which are elements from the substances they have tested.
The river provides fertile soil for farming
Answer :
(a) The initial velocity is, 14.8 m/s
(b) The acceleration is, 
Explanation :
By the 1st equation of motion,
...........(1)
where,
v = final velocity = 0 s
u = initial velocity
t = time = 6.35 s
a = acceleration
The equation 1 will be:
..........(2)
By the 2nd equation of motion,
...........(3)
where,
s = distance = 47 m
Now substitute equation 2 in 3, we get:
By solving the term, we get:
The acceleration is,
Now we have to calculate the initial velocity.
Using equation 2, we gte:
The initial velocity is, 14.8 m/s
Answer:
a. 1.81
b. using the lap button feature
Explanation:
a. avg of the times
