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Gala2k [10]
3 years ago
6

From the deepest to the surface, what are the parts of the earth's interior?

Physics
1 answer:
shepuryov [24]3 years ago
3 0

The answer is A: Core --> Mantle --> Crust.

Core: The earth's core is the center of the earth, which would ultimately be the deepest. The core is made up of alloy, which is a mixture of many medals, such as iron and nickel.

Mantle: The earth's mantle is the layer between the earths crust and core. Often made of silicate rocks.

Crust: The earth's crust is the outer-most of the three options. Usually made of up different types of rocks.

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Complete the sentence. Friction always ____________
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Answer:

B- Opposes the motion

Explanation:

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If a 0.15 kg ball falls and has a KE of 20 J just before striking the ground, from what height did it fall. A. 1.36m B. 3m C. 13
RUDIKE [14]
According to the conservation of mechanical energy, the kinetic energy just before the ball strikes the ground is equal to the potential energy just before it fell. 

Therefore, we can say KE = PE
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Which means KE = m·g·h

We can solve for h:

h = KE / m·g
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The correct answer is: the ball has fallen from a height of 13.6m.

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6 0
4 years ago
After driving a portion of the route, the taptap is fully loaded with a total of 27 people including the driver, with an average
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The Weight is,

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Through the hook's Law we calculate X.

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X = \frac{F_s}{x} \\X = \frac{1909.4}{k}

I assume a value of K=4*10^4N/m

X= \frac{1909.4}{4*10^4} = 0.48m

6 0
3 years ago
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