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antoniya [11.8K]
2 years ago
7

How did the amount of rainfall help determine the formation of the prairie?

SAT
1 answer:
Roman55 [17]2 years ago
3 0
When a moderate rainfall area had wetter years, many trees began growing. when there were drier years, fires of ten occurred and killed off the small trees. However, the fires did not kill most grasses. Therefore, prairies with grassland won out in the open areas. Where the areas were most moist and protected, forests grew.

rainfall averaged between 25 cm per year and 100 cam per year in the prairie regions. the eastern parts of the prairie usually received more rainfall that the western parts of the prairie. the difference in rainfall is onereason why the food chain varied somewhat from east to west in the prairie ecosystem.
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If f(x)=2x+1 and g(x)=x^2+7, which of the following is equal to f(g(x))
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Answer: 2x^{2} +15

Explanation:

so basically f(g(x)) is telling you to plug the entire g(x) equation into x in the f(x) equation so it will look like this

2(x^{2} +7) + 1

and then simplify

2x^{2} +14 + 1

2x^{2} +15

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Kinematics of particles problems and solutions pdf
iragen [17]

The acceleration of the pendulum mass D is; r"_d =  [x''(t) + lθ'' cos θ - lθ'² sin θ]i - l[θ'' sin θ - θ'² cos θ]j

<h3>What is Kinematics of particles?</h3>

Kinematics is the study of the geometry of motion of particles, rigid bodies, etc., disregarding the forces associated with these motions. However, Kinematics of a particle is the motion of a point in space.

From the sample problem, we can solve it using the (x, y, z) coordinate system to get;

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Finding the first derivative of r_d gives velocity as;

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Taking the second derivative of r_d gives the acceleration as;

r"_d =  [x''(t) + lθ'' cos θ - lθ'² sin θ]i - l[θ'' sin θ - θ'² cos θ]j

A sample problem of kinematics of particles is;

A block C slides along the horizontal rod, while a pendulum attached to the block can swing in the vertical plane. Find the acceleration of

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Read more about Kinematics of Particles at; brainly.com/question/26269548

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