Answer: let north be+ and south be-
therefore, -1 km is the resultant displacement of the bird
hope it helped u,
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Answer:
Option C, increases and decreases
Explanation:
When an object making noise approaches you, the wave frequency increases leading to a higher pitch. Conversely, when it moves away from you or retreats, the wave frequency decreases leading to a lower pitch. This can be observed in ambulance sirens.
I am pretty sure it’s B (carbon dioxide)
Answer:
Tension.
Explanation:
I just had this question so I hope it sort of helps.