Answer:
Explanation: Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat, or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.
Boers treated native Americans with social dominance and violence <span>during their residency in the southern part of Africa. The correct option among all the options that are given in the question is the third option or option "C". I hope that this is the answer that has come to your desired help.</span>
The answer is a stream. The water leaves a lake through a stream to maintain the freshness of the lake waer. A stream is where the water flows downhill from an open lake. An open lake is where the water flows constantly so that the water is fresh.
The free body diagram consists of:
1) Weight force, which is a vertical arrow downward
2) A Normal force that is perpendicular to the ramp.
The Normal force can be decomposed in a vertical component and an horizontal component.
The vertical component, Ny, must equal the weight force, due to equilibrium (rest) condiition =>
Ny = weight = m*g = 5.5kg*9.8m/s^2 = 53.9 N
By geometry the vertical component of the Normal force, Ny is such that
cos (angle) = N / Ny => N = Ny * cos(angle)
=> N = 53.9N * cos(angle)
Now use that equation for each option:
a) 0 ° => N = 53.9N * cos(0) = 53.9N
b) 12° => N = 53.9 * cos(12) = 52.7N
c) 25° => N = 53.9 * cos(25) = 48.9N
d) 45° => N = 53.9 * cos(45) = 38.1N
After a thorough research, there exists a question that has the following questions.
<span>A. outdated
B. imaginative
C. non-testable
D. unacceptable
</span>
So, the correct answer is (C) non-testable. The reason why it is non-testable because these are considered theories of the solar system in which non of us exists before it was created.
