For harmer:-
initial velocity=u=0m/s
Acceleration due to gravity=10m/s^2
Now



For soft drink:-
u=24m/s

Using eq(1)




After 1.2s they will meet.
Now
putting t in eq(1)

At the height of 7.2m they will meet
C. Have like poles that repel each other
Answer:
Well AM/Fm is digitally using soundwaves for cars through signal, which we cant hear without one (radio). Concerts are in real life and use wavelegnths that we hear because it bounces off overytihing.
Explanation:
Your answer is c holding a brick doesn't contain movement, but energy to grip on it.
hoped it helped!!!