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alexira [117]
3 years ago
13

In which step of the four-stroke engine cycle does the spark plug initiate the combustion reaction?

Chemistry
2 answers:
Doss [256]3 years ago
8 0
<h2>Answer:</h2>

Combustion stroke is the step at which four-stroke engine cycle sparks plug initiate the combustion reaction.

<h3>Explanation:</h3>
  • Combustion or ignition is known as the burning of fuel in the presence of air.
  • Combustion stroke is the third stroke in four-stroke engine .
  • In this stroke the compressed air-fuel mixture is sparked by a spark plug (in a gasoline engine) and by heat generated by high compression (diesel engines).
Dominik [7]3 years ago
4 0
ANSWER
Power stroke

EXPLANATION

At the power stroke stage, the piston is forced to move down by the expanding gases as both intake valve and exhaust valve are closed.
A spark from the spark plug contributes to ignition of the compressed fuel air mixture to released energy to perform work.
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Answer:

\boxed{\text{4 m $\cdot$ s$^{-2}$}}

Explanation:

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a = \dfrac{F}{m} = \dfrac{\text{20 N}}{\text{5 kg}} \times \dfrac{\text{1 kg$\cdot$ m $\cdot$ s$^{-2}$}}{\text{1 N}} = \text{4 m $\cdot$ s$^{-2}$}\\\\\text{The acceleration of the object is } \boxed{\textbf{4 m $\cdot$ s$^{\mathbf{-2}}$}}

 

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Answer:

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Explanation:

There's is no further explanation for this.

All the electrons in an energy level are distribuited according to the period in the periodic table they are.

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energy levels beyond that, like n = 4, we have electrons occupying the 3d sub level, so, primordly, the 3d is found only in energy level 3.

Hope this helps

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