Answer:
C
Step-by-step explanation:
You just have to add the values
Answer:
Step-by-step explanation:
here x
3
the circle is filled so it includes the value
Answer: THe Second answer is the correct one
Step-by-step explanation:
Answer:
91.61
Step-by-step explanation:
thats what i got
Answer:
612 Hz.
Step-by-step explanation:
The frequency of the sound will be proportionally higher when coming towards you. The increase is related to the speed of the train.
So the frequency will be:
580 + (580 / 343) * 18.8
= 612 Hz.
This is called the Doppler effect.