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fgiga [73]
3 years ago
9

A train moves from rest to a speed of 25 m/s in 50.0 seconds. What is its acceleration?

Physics
1 answer:
ELEN [110]3 years ago
5 0

Answer:

Wellll. I am assuming the direction of speed is in the same direction as the direction of displacement of the train. (i.e. Velocity is positive)

Acceleration is defined as the rate of change of velocity with respect to time (m^s-2)

Explanation:

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The equipotential surfaces surrounding a point charge are concentric spheres with the charge at the center. If the electric pote
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Answer:

1.06 m

Explanation:

Since the charge is at the centre of two concentric spheres, we use the formula for electric potential due to a point charge. V = kq/r. Let r₁ be the radius of the sphere with potential, V₁ = 200 V and  r₂ be the radius of the sphere with potential, V₂ = 82.0 V. From V = kq/r, r = kq/V. So that r₁ = kq/V₁ and r₂ = kq/V₂. The magnitude of the difference r₁ - r₂ is the distance between the two surfaces. q the charge equals 1.63 × 10⁻⁸ C

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8 0
3 years ago
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How should the distance, D, between two point charges, q1 and q2, be changed to double their electric potential energy
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4 years ago
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