Being the planet closest to the sun, Mercury must be the one
with the shortest year. That's how gravity works.
<span>The United Nations was founded primarily B. to help international diplomacy</span>
Answer:
a). 1.218 m/s
b). R=2.8
Explanation:


Momentum of the motion the first part of the motion have a momentum that is:


The final momentum is the motion before the action so:
a).




b).
kinetic energy

Kinetic energy after

Kinetic energy before

Ratio =

Answer:
I got the answer of yr question
but it is too long
brainly is not taking