The chicken's eggs are fertilized interally
The answer is B I think sorry if it’s wrong
Answer:Shifted towards Left by distance of 2.243 m
Explanation:
Given
Mass of john 
Mass of barbara 
John is standing at 
Barbara is standing at 




Now if they change their Position then



Thus we can see that center of mass shifted towards left by a distance of
because heavier is shifted towards left
Answer:
Creation of energy by joining the nuclei of two hydrogen atoms to form helium