3 years ago

What determines the life cycle of a star?

Physics

1 answer:

Nataly_w [17]3 years ago

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D) the mass of the star is the correct answer.

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Engines in car are 4 stroke engine . A 4-stroke engine is internal combustion engine which derives its power by four piston strokes . Internal combustion means combustion takes inside the engine i.e. is in cylinder.

There are process in 4 stroke engine

Intake: Intake of air
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3 years ago

A uniform plank of mass 10kg and length 10m rests on two supports, A and B as shown. A boy of weight 500N stands at a distance o

kifflom [539]

Answer:

U² = 142.86 N

U¹ = 357.14 N

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Taking summation of the moment about point A, we get the following equilibrium equation: (taking clockwise direction as positive)

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where,

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U² = reaction ay B = ?

Therefore,

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$W-U^1-U^2=0\\500\ N - 142.86\ N = U^1\\$

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