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soldi70 [24.7K]
3 years ago
13

Write the formula for kinetic energy that uses force in its equation. Calculate the kinetic energy generated when a 2500 N force

is applied to a car when moving it 200 m. Show work.
Physics
1 answer:
djyliett [7]3 years ago
8 0

Answer:

500000 J

Explanation:

ΔKE =Work = F*d = 2500 N * 200 m =500000 J

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When a cube is inscribed in a sphere of radius r, the length Lof a side of the cube is . If a positive point charge Qis placed a
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  Ф_cube /Ф_sphere = 3 /π

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      Ф = E A

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       Фi = ∫ E .dA = q_{int} / ε₀

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To calculate the flow on the two surfaces

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* Cube

Let's find the side value of the cube inscribed inside the sphere.

In this case the radius of the sphere is half the diagonal of the cube

          r = d / 2

We look for the diagonal with the Pythagorean theorem

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         d = √2 L

         

we substitute

          r = √2 / 2 L

          r = L / √2

          L = √2  r

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          A = 6 L²

          A = 6 (√2  r)²

          A = 12 r²

the flow is

          Ф = E A

          Ф = 1 / 4πε₀  Q/r²  (12r²)

          Ф_cubo = 3 /πε₀  Q

the relationship of these two flows is

         Ф_cube /Ф_sphere = 3 /π

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