C orbitals
I am sure this is right, try it out
Answer:
D
Explanation:
the total speed and the total mass of the entire system remain the same weather one object is moving or stationary.
When two or more objects collide, the collision does not change the
total momentum of the two objects.
Whatever momentum is lost by one object in the collision is gained
by the other. The total momentum of the system is conserved.
Answer:
I cant see the paper very well
Explanation:
I think nitrogen as it is the major component
In projectile motion we know that range of projectile is given as

also the maximum height is given as

so here we can see that maximum height and range on earth will inversely depends on gravity
now if we compare this height and range on earth and moon



similarly for height we have



so both will increase by factor of 7.26