In a ballistics test, a 24 g bullet traveling horizontally at 1200 m/s goes through a 31-cm-thick 320 kg stationary target and e
1 answer:
Answer:
The velocity is
Explanation:
From the question we are told that
The mass of the bullet is
The initial speed of the bullet is
The mass of the target is
The initial velocity of target is
The final velocity of the bullet is is
Generally according to the law of momentum conservation we have that
=>
=>
You might be interested in
Answer:
0.02m/s^2
Explanation:
Answer:
The correct option is;
- 4x
Explanation:
From the inverse square law, as the distance from the source of a physical quantity increases, the intensity of the source is spread over an area proportional to the square of the distance of the object from the source
The inverse square law can be presented as follows;
As the distance, r, increases, the surface it covers also increases by the power of 2
Therefore, where the distance increases from r to 2·r, we have;
When, I, remain constant
The surface increases to 4·S by the inverse square law
Therefore, the correct option is 4 × x.