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Natasha2012 [34]
3 years ago
15

Tom has a mass of 50,000 g and runs up a flight of stairs 4 m high in 12.5 seconds.

Physics
1 answer:
Leya [2.2K]3 years ago
5 0

Answer:

160 watts.

Explanation:

Remark

Power = Work / Time

Work = F * d

Note: Since he is running up stairs he is doing work against gravity.

Givens

  • m = 50000 g   kg / 1000 grms
  • m = 50000 / 1000 = 50 kg
  • h = 4 m
  • time = 12.5 seconds
  • g = 10 m/s^2

Formula

  • P = W * d/t
  • W = m*g *d / t

Solution

  • P = 50kg * 10 m/s^2 * 4 m / 12.5
  • <em><u>P = 160 watts. </u></em>

<em><u></u></em>

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<h3>What is the electric field due to the 4.0 μC charge?</h3>

The electric field due to the 4.0 μC charge is E = kq/r² where

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<h3>What is the electric field due to the -4.0 μC charge?</h3>

The electric field due to the -4.0 μC charge is E = kq'/r² where

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<h3>What is the electric potential at the origin?</h3>

So, the electric potential at the origin is V = -∫₂⁰E".dr

= -∫₂⁰-2kq/r².dr

Since E and dr = dx are parallel and r = x, we have

= -∫₂⁰-2kqdxcos0/x²

= 2kq∫₂⁰dx/x²

= 2kq[-1/x]₂⁰

= -2kq[1/x]₂⁰

= -2kq[1/0 - 1/2]

= -2kq[∞ - 1/2]

= -2kq[∞]

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So, the electric potential at the origin of the xy coordinate system is negative infinity

Learn more about electric potential here:

brainly.com/question/26978411

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~done by cessly420

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Answer:

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60 meters is he answer for this question

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