Answer:
changing their speed, changing direction, or when both speed and direction change
Explanation:
changing their speed,
changing direction,
or when both speed and direction change
Explanation:
We know that,
Where,
h = Height at which pressure is to be calculated
Higher frequency sound waves are perceived as having higher pitch
Answer:
The answer is the top choice. (-1)
Explanation:
We are dealing with a negative number here, so we should start at negative five on the number line. From here we see that we are subtracting a negative number from it, which means we are really adding. (Review your rules for negative signs if this doesn't make sense.) So we add 4 to -5, and we get -1. Thus, we get the top choice.
D. Speed and direction, this is because velocity is a vector quantity so has a magnitude and direction assigned to it because it is the rate of change of displacement.
