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2 years ago

What is the term for the pattern of spiral impressions inside a handgun?

Physics

2 answers:

Tomtit [17]2 years ago

8 0

The correct choice is

A) rifling

Rifling is a pattern of sequence of raised and recessed portions. These raised portions are known as lands and recessed portions as grooves. these lands and grooves helps in providing spin to the bullet as it is fired. This spin makes the bullet to penetrate deeper into the target and cause severe damage.

Korolek [52]2 years ago

4 0

It's called rifling, to stabilise the bullet.

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The motion of a car on a position-time graph is represented with a horizontal line. What does this indicate about the car's moti

Ksenya-84 [330]

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2 years ago

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Help when u can! I feel like it's C, but I just want to make sure before I submit the test.

Marat540 [252]

(D)

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2 years ago

What is Icm, the moment of inertia of the disk around its center of mass? You should know this formula well.

kirill115 [55]

Answer:

$I_{cm}=\frac{MR^{2}}{2}$

Explanation:

First at all let's understand what is moment of inertia (I). The moment of inertia of a body is the rotational analog of mass in linear motion, this is, it determines the force we should apply to the body to acquire a specific angular acceleration. But in the rotational case we should specify about what point we are going to rotate an object so always the moment of inertia is defined respect to an arbitrary axis. It's usual to use the center of mass as an axis of rotation, because it's an unique point where we can assume all the mass of the object is concentrated.The moment of inertia respect of an axis that passes through the center of mass is denoted $I_{cm}$ .

Now, if the disk you're talking about has uniform density the center of mass is exactly at the geometrical center of the disk, and the moment of inertia of a disk as that is:

$I_{cm}=\frac{MR^{2}}{2}$

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3 years ago

if you know the RGB values of two colours of light how could you calculate the RGB value of the mixture of two colours summarize

kenny6666 [7]

Answer:

Explanation:

RGB values are a combination of three different numerical values which represent Red Green and Blue which range from 0 to 255. When combining two separate colors with RGB values you would simply need to add each of these numerical values together to form an entirely new RGB value. For example,

(105, 200, 0) + (203, 30, 186) = (255, 230, 186)

You can see in the example above that every number in the first color is added to the number in the same position within the second color. If the addition of two numbers goes above 255 then the value maxes out at 255 and stays as is.

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3 years ago