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max2010maxim [7]
3 years ago
6

Help plzzzzzzz-it's not physics I couldn't put science

Physics
1 answer:
gtnhenbr [62]3 years ago
4 0
Answer is b because Cause metamorphic rock is formed by heat pressure overtime
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What's the equivalent resistance to the resistances shown?<br><br>A) 5<br>B) 6<br>C) 2<br>D) 3
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From A to B its 5 ohm.
above shown 6 and 12 ohm resistors are in parallel to short circuit hence their equivalent resistance is zero.
(Current doesnt flow through a resisstor if there is a Short circuit alternate.
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Explain how forces of attraction and repulsion exist within an atom
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Oppositely charged particles attract each other, while like particles repel one another. Electrons are kept in the orbit around the nucleus by the electromagnetic force, because the nucleus in the center of the atom is positively charged and attracts the negatively charged electrons.

Explanation:

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Help it multiple-choice 16 and 17 only
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16. c

17. d

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Disturbances inside Earth’s core cause earthquakes. The starting point of the disturbance is called the epicenter. Why does the
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Which of the following combinations of position (x) and direction of motion would give a velocity in the x-direction that has a
UkoKoshka [18]

Answer:

c) Both a) and b) are the combinations that have a negative velocity.

Explanation:

The velocity is given by this equation:

v = Δx / Δt

Where

Δx = final position - initial position

Δt = elapsed time

Now let´s evaluate the options. We have to find those combinations in which  Δx < 0 since Δt is always positive.

a) If the initial position, x, is positive and you move towards the origin, the final position will be a smaller value than x. Then:

                          final position < initial position

final position - initial position < 0 The velocity will be negative.

b) If x is negative and you move away from the origin, the final position will be a more negative number than x. Again:

                          final position < initial position

final position - initial position < 0 The velocity will be negative.

Let´s do an example to show it:

initial position = -5

final position = -10 (since you moved away from the origin)

final position - initial position = -10 -(-5) = -5

d) If x is positive and you move away from the origin, the final position will be a greater value than the initial position. Then:

                          final position > initial position

final position - initial position > 0 The velocity will be positive.

e) If x is negative and you move towards the origin, the final position will be a greater value than the initial position. Then:

                          final position > initial position

final position - initial position > 0 The velocity will be positive.

Let´s do an example:

initial position = -10

final position = -5

final postion - initial position = -5 - (-10) = 5

or with final position = 0

final postion - initial position = 0 -(-10) = 10

And so on.

The right answer is c) Both a) and b) are the combinations that have a negative velocity.

7 0
3 years ago
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