The answer to this question is a the estimate the speed of light
<u>We are given:</u>
2 Vectors A and B
A = î - 5j
B = 2î - 10j
<u>Proving that the given vectors are Parallel:</u>
We can rewrite the Vector B as: B = 2(î - 5j)
Since A = î - 5j
Vector B can be written as:
B = 2(A vector)
this means that the magnitude of Vector B is twice of vector A but their direction is the same
Since the 2 vectors are moving in the same direction, they are parallel
Answer: -1 or -4/4
Explanation:
4/4 simplifies to 1 and the opposite of 1 is -1.
The frequency does the other car hear after they pass each other is 631.8 Hz.
<h3>
Frequency heard by the second car</h3>
The frequency heard by the second car is calculated as follows;
f = f'(v/v - vs)
where;
- f' is the original frequency
- f is the later frequency heard
- v is speed of sound
- vs is source speed
f = 595(343/343 - 20)
f = 631.8 Hz
Thus, the frequency does the other car hear after they pass each other is 631.8 Hz.
Learn more about frequency of car here: brainly.com/question/24338491
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