<u>Answer </u>
Part 1: Velocity
Part 2: Acceleration
<u>Explanation
</u>Part 1
Velocity is a vector quantity. This means that velocity has both direction and magnitude.
Velocity is defined as the change of distance with time in a specific direction.
Part 2
When velocity of a particle is changing, then it can be said that the particle is accelerating.
Change of velocity with time is called acceleration.
<span>D. where the ocean meets a reef
</span>What is the intertidal zone?
<em><u>
where the ocean meets a reef
</u></em>
NOT:
A. where the ocean meets fresh water
B. where the ocean meets the land
<span>C. where the ocean meets a tide</span>
Ocean waves travel through the medium called
"ocean water" or "salt water" or simply "water".
Explanation:
A compound is a pure substance composed of two or more different atoms chemically bonded to one another. A compound can be destroyed by chemical means. It might be broken down into simpler compounds, into its elements or a combination of the two.
Answer:
a. Acceleration, a = 1.88 m/s²
b. Time, t = 7.87 seconds.
Explanation:
Given the following data;
Initial velocity, U = 14.5m/s
Final velocity, V = 29.3m/s
Distance, S = 172m
a. To find the acceleration of the speedboat;
We would use the third equation of motion;
V² = U² + 2aS
Substituting into the formula
29.3² = 14.5² + 2a*172
858.49 = 210.25 + 344a
344a = 858.49 - 210.25
344a = 648.24
a = 648.24/344
Acceleration, a = 1.88 m/s²
b. To find the time;
We would use the first equation of motion;
V = U + at
29.3 = 14.5 + 1.88t
1.88t = 29.3 - 14.5
1.88t = 14.8
Time, t = 14.8/1.88
Time, t = 7.87 seconds.