Answer:
<u>because of the doppler effect</u>
Explanation:
<em>Remember</em>, the doppler effect refers to the changes in sound (frequency of sound) observed by a person who is in a position relative to the wave source.
In this example, we notice as the train comes closer to the boy, the sound becomes louder also increasing the pitch slightly, the doppler effect sets in when the train passes the boy because the boy notices a decrease in the pitch of the moving train.
We learn from the change in the observed sound of the train that the frequency of the sound is determined by the distance of the observer from the wave source.
In other words, the closer the source of the sound to the observer; the faster it travels to the observer, however, the farther it is; the lesser it is; the greater the sound heard.
Initial velicity Vo.
Sin(23) = 24.7 / Vo
Vo = 24.7/Sin(23)
V0 = 63.2 m/sec
Answer:
The velocity of the 8-ball after collision is and the direction is towards that right
Explanation:
From the question we are told that
The mass of the cue ball is
The speed of the cue ball is
The mass of the 8-ball is
The velocity of the 8 ball is
The negative sign is because it is moving left
The velocity of the cue ball after collision is
Generally from the law of momentum conservation
=>
=>
=>
Do you mean mitosis? If so metaphase.
Answer:
Yes
Explanation:
Objects with greater mass have more gravity. For example a feather and a phone. A feather falls slower than a phone becasue their is less gravity.
Hope this helps :)