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3 years ago

Helpppppp please i can NOT fail

Physics

2 answers:

Andrej [43]3 years ago

8 0

Answer:

The African plate is splitting apart to form two separate plates. The African plate is colliding with the Arabian plate.

PLZ GIVE BRAINLIEST IF IM CORRECT <3

san4es73 [151]3 years ago

5 0

Hi.

SOS answer :

Option C, the African plate is splitting apart to form two separate plates.

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Suppose you are pushing a 3 kg box with a force of 25 N (directed parallel to the ground) over a distance of 15 m. Afterward, th

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Answer: 321 J

Explanation:

Given

Mass of the box $m=3\ kg$

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acceleration associated with it is $a=\dfrac{F}{m}$

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change in kinetic energy is $\Delta K$

$\Rightarrow \Delta K=\dfrac{1}{2}m(v^2-0)\\\\\Rightarrow \Delta K=\dfrac{1}{2}\times 3\times 6^2\\\\\Rightarrow \Delta K=\dfrac{1}{2}\times 3\times 36\\\\\Rightarrow \Delta K=54\ J$

According to work-energy theorem, work done by all the forces is equal to the change in the kinetic energy

$\Rightarrow W+W_f=\Delta K\quad [W_f=\text{Work done by friction}]\\\\\Rightarrow 375+W_f=54\\\Rightarrow W_f=-321\ J$

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