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denis23 [38]
2 years ago
7

Shante makes a diagram to compare the effects of short-term and long-term environmental changes. Which statement should she plac

e in the region marked X? Cause speciation Affect organisms Are caused by plate tectonics Are driven by solar energy changes
No links please or i will say a few things you won't like : )
Physics
1 answer:
irinina [24]2 years ago
5 0
Answer: affect organisms
hope this helps you out .
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A spring attached to the ceiling is stretched 2.45 meters by a four kilogram mass. If the mass is set in motion in a medium that
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Answer:

d²x/dt² = - 4dx/dt - 4x is the required differential equation.

Explanation:

Since the spring force F = kx where k is the spring constant and x its extension = 2.45 equals the weight of the 4 kg mass,

F = mg

kx = mg

k = mg/x

= 4 kg × 9.8 m/s²/2.45 m

= 39.2 kgm/s²/2.45 m

= 16 N/m

Now the drag force f = 16v where v is the velocity of the mass.

We now write an equation of motion for the forces on the mass. So,

F + f = ma (since both the drag force and spring force are in the same direction)where a = the acceleration of the mass

-kx - 16v = 4a

-16x - 16v = 4a

16x + 16v = -4a

4x + 4v = -a where v = dx/dt and a = d²x/dt²

4x + 4dx/dt = -d²x/dt²

d²x/dt² = - 4dx/dt - 4x which is the required differential equation

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3 years ago
What happens when an object with a lower density is placed in a container with an
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The only thing that definitely happens in every such case is:
The container becomes heavier.
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2 years ago
You and your lab partner, Mel, are engrossed in a chemistry activity using beans to compute the average atomic mass of an elemen
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Answer:

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