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ryzh [129]
3 years ago
6

Why does a shuttle need to have a tank containing oxygen?

Physics
1 answer:
natita [175]3 years ago
8 0

Answer:

since there is no, r NO oxygen in outer space. since oxygen is the gas we lives on, it was necessary it to maintaining our heart pumping. And because there's no oxygen in space, t you need a supply of oxygen brought from earth.

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How much can a 70kg skatebaors accelerate if you push it with a force of 360N?
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It would not move. It wouldn't move because its 7 0 K G my friend.

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Two charged particles, with charges q1=q and q2=4q, are located at a distance d= 2.00cm apart on the x axis. A third charged par
Murrr4er [49]

Answer:

X₃₁ = 0.58 m  and  X₃₂ = -1.38 m

Explanation:

For this exercise we use Newton's second law where the force is the Coulomb force

        F₁₃ - F₂₃ = 0

        F₁₃ = F₂₃

Since all charges are of the same sign, forces are repulsive

        F₁₃ = k q₁ q₃ / r₁₃²

        F₂₃ = k q₂ q₃ / r₂₃²

Let's find the distances

         r₁₃ = x₃- 0

         r₂₃ = 2 –x₃

We substitute

      k q q / x₃² = k 4q q / (2-x₃)²

      q² (2 - x₃)² = 4 q² x₃²

        4- 4x₃ + x₃² = 4 x₃²

        5x₃² + 4 x₃ - 4 = 0

We solve the quadratic equation

        x₃ = [-4 ±√(16 - 4 5 (-4)) ] / 2  5

        x₃ = [-4 ± 9.80] 10

       X₃₁ = 0.58 m

       X₃₂ = -1.38 m

For this two distance it is given that the two forces are equal

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