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Furkat [3]
3 years ago
6

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

Physics
2 answers:
Tomtit [17]3 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]3 years ago
4 0
It's called rifling, to stabilise the bullet.
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You are standing in front of a flat large mirror. As you step 1.0 m farther from the mirror, the distance between you and your i
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2 meters

Explanation:

when you step away from a reflection you get farther

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A proton traveling due west in a region that contains only a magnetic field experiences a vertically upward force (away from the
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D

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A spring gun consists of a spring inside a plastic tube with spring constant, k. The spring can be compressed 20 cm from its equ
emmainna [20.7K]

Answer: The spring constant is K=392.4N/m

Explanation:

According to hook's law the applied force F will be directly proportional to the extension e produced provided the spring is not distorted

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Where k=spring constant

e= Extention produced

h=2m

Given that

e=20cm to meter 20/100= 0.2m

m=100g to kg m=100/1000= 0.1kg

But F=mg

Ignoring air resistance

assuming g=9.81m/s²

Since the compression causes the plastic ball to poses potential energy hence energy stored in the spring

E=1/2ke²=mgh

Substituting our values to find k

First we make k subject of formula

k=2mgh/e²

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5 0
3 years ago
What do folds on a strip of paper mean
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2 years ago
Eric has a mass of 19.0 kg on the earth. What is Eric's weight on earth? What is Eric's weight on Mars? where the acceleration o
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Answer:

Weight on Earth = We = 186.2 N

Weight on Mars = Wm = 70.94 N

Explanation:

The weight of an object is defined as the force applied on the object by the gravitational field. The magnitude of weight is given by the following formula:

W = mg

were,

W= Weight of Eric

m = mass of Eric

g = acceleration due to gravity

ON EARTH:

W = We = Eric's Weight on Earth = ?

m = Eric's Mass on Earth = 19 kg

ge = acceleration due to gravity on Earth = 9.8 m/s²

Therefore,

We = (19 kg)(9.8 m/s²)

<u>We = 186.2 N</u>

<u></u>

ON MARS:

W = Wm = Eric's Weight on Mars = ?

m = Eric's Mass on Mars = 19 kg

gm = acceleration due to gravity on Mars = 0.381(ge) = (0.381)9.8 m/s² = 3.733 m/s²

Therefore,

Wm = (19 kg)(3.733 m/s²)

<u>Wm = 70.94 N</u>

3 0
3 years ago
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