Answer:

Explanation:
From the question we are told that
Moving Mass 
Velocity of cart 
Stationary Mass 
Recoil velocity 
Generally the equation of momentum is mathematically given by



Therefore speed of the stationary mass after collision is 
Explanation:
Given that,
A hockey puck moves 28 m southward then 14 m northward and finally 4 m southward distance.
The total path covered is called distance and the shortest path covered is called displacement.
Distance = 28 m + 14 m + 4 m
Distance = 46 m
Let the nothward direction is positive y axis and southward direction is negative y axis.
Displacement is equal to the difference of final position and the initial position.
Displacement =-28 m - (-4 m)
= -24 m
The magnitude of displacement is in south direction.
Answer:
particle model
Explanation:
A particle model is a simplified version of a motion diagram in which the object in motion is replaced by a series of single points.
For CO2 we know that it has a useful life in the atmosphere of the earth, sometimes long. Carbon dioxide has the ability to absorb energy with a wavelength of 15 µm, this makes carbon dioxide a good absorbent of wavelengths that are in this range, such as infrared radiation for example .
At the same time the water vapor has the capacity to absorb the radiation in a 50 µm and 2.9 µm spectrum, infrared radiation fluctuates over the same range.
Therefore the correct answer is A.