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3 years ago

PLZ HELP!!!!

Physics

2 answers:

WINSTONCH [101]3 years ago

8 0

Answer:

D. Muzzleloaders are always loaded from the muzzle end

Explanation:

Muzzleloading is sports in which muzzleloader are fired. Muzzleloading guns are used for target shooting, hunting, and historical research. It is also used in firearms widely. of all the options in the question the correct statement is

D. Muzzleloaders are always loaded from the muzzle end.

Moreover, muzzleloader are cleaned thoroughly to obtain better accuracy.

FrozenT [24]3 years ago

5 0

I would think the answer is c.

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A truck with a mass of 1370 kg and moving with a speed of 12.0 m/s rear-ends a 593 kg car stopped at an intersection. The collis

Elza [17]

Answer:

speed of car after collision, v2 =16.1 m/s and of the truck, v1 = 4.6 m/s

Explanation:

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mass of truck M = 1370 kg

speed of truck = 12.0 m/s

mass of car m = 593 kg

collision is elastic therefore,

Applying law of momentum conservation we have

momentum before collision = momentum after collision

1370×12 + 0( initially car is at rest) = 1370×v1+ 593×v2 ....(i)

Also for a collision to be elastic,

velocity of approach = velocity of separation

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3 years ago

A solid cylindrical object has a mass of 2.0 kg, a diameter

omeli [17]

Answer:

I = 0.0025 kg.m²

Explanation:

Given that

m= 2 kg

Diameter ,d= 0.1 m

Radius , $R=\dfrac{d}{2}$

$R=\dfrac{0.1}{2}$

R=0.05 m

The moment of inertia of the cylinder about it's axis same as the disc and it is given as

$I=\dfrac{mR^2}{2}$

Now by putting the all values

$I=\dfrac{2\times 0.05^2}{2}$

I = 0.0025 kg.m²

Therefore we can say that the moment of inertia of the cylinder will be 0.0025 kg.m².

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