Given two questions:
<span>1) If a car passes a pedestrian, a change in pitch is ______________.
The answer is the change in pitch is perceived by the pedestrian since he is the one in a relatively constant position compared to the car passing.
2) </span><span>In the Doppler Effect lab, which statement best describes what you demonstrated about speed and pitch?
The answer is 'speed and direction affect pitch'.</span>
Answer:
A
Explanation:
in a lewis structure, it shows the connectivity of a molecule as well as how many and where the valence electrons are located.
If the solution is BASIC than it will turn purple but if ACIDIC it will turn pink.
