Answer: A. vector
Explanation:
Movement is the change of position of a body at a certain time. The body that experiences this change of position is called mobile.
In this sense, the <u>displacement</u> is the distance in a straight line between the initial and final position of this mobile, which differentiates it from <u>the trajectory, </u> which is the <u>path followed by the body in its movement and a scalar magnitude.</u>
Hence, the displacement is a vector.
Answer:
0.78 m
Explanation:
I just did a hw question for this its just 344 divided by 440
Answer:
The speed of the bird is 1.00% of the speed of sound.
Explanation:
The speed of the bird can be found by using the Doppler equation:
Where:
v: is the speed of sound = 343 m/s
f₀: is the frequency emitted = 1490 Hz
f: is the frequency observed = 1505 Hz
: is the speed of the receiver = 0 (it is stationary)
: is the speed of the source =?
The minus sign of is because the source is moving towards the receiver.
By solving the above equation for we have:
The above speed in terms of the speed of sound is:
Therefore, the speed of the bird is 1.00% of the speed of sound.
I hope it helps you!
