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3 years ago

15

Bullets spin when shot from a rifle or handgun. What causes this spinning?

1 answer:

tamaranim1 [39]3 years ago

7 0

Answer:

The spark from the primer ignites the gunpowder. Gas converted from the burning powder rapidly expands in the cartridge. The expanding gas forces the bullet out of the cartridge and down the barrel with great speed. The rifling in the barrel causes the bullet to spin as it travels out of the barrel.

Explanation:

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Which of the following is a primary source?

Anarel [89]

The answer is C :), I think.

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3 years ago

A 160-N child sits on a light swing and is pulled back and held with a horizontal force of 100 N. The magnitude of the tension f

guajiro [1.7K]

Answer:

T = 190 N

Explanation:

When child is sitting on the swing then the weight of the child is vertically downwards

So it is

$F_g = 160 N$

now a force of 100 N is acting on the swing in horizontal direction

so it is given as

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now the net force is resultant force due to gravity and horizontal force

so it is given as

$T = \sqrt{F_x^2 + F_g^2}$

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3 years ago

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pogonyaev

Answer:

L = 1.545 m

Explanation:

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3 years ago

Drawing a ray diagram for an object far from convex lens requires how many rays?

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Answer

4

Explanation:

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3 years ago

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Answer:

it's C

Explanation:

have a nice day............

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3 years ago

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