Answer:
oh i would have to do alot to answer that
Answer:
The total momentum is 
Explanation:
The diagram illustration this system is shown on the first uploaded image (From physics animation)
From the question we are told that
The mass of the first object is 
The speed of the first mass is 
The mass of the second object is 
The speed of the second object is assumed to be 
The total momentum of the system is the combined momentum of both object which is mathematically represented as

substituting values


They don't need gas because satellites rotate around the world using our planet's gravitational force as centripetal force. That as well as since there is no air in space, it doesn't have to work against air resistance. This way it doesn't lose energy by going around and around the Earth.
Hope this helps, have a BLESSED day! :-)
Answer:
Grams, I believe..! (Meter, liter, gram)
It is an example of "Elastic Potential Energy"
In short, Your Answer would be Option C
Hope this helps!