The older students should be able to complete the puzzle in a shorter amount of time than the younger students
Yeah its True!! Its unbalanced because the unbalance fore are unequeal in size and opposite in direction.
The answer is D. As the ambulance gets closer, the sound waves are compressed relative to the person; so the frequency increases.
I think being self disciplined is when you are a responsible and mature person and maybe raised yourself I don’t know what else to write you can expand on this
