Answer:
Doppler Effect
Explanation:
Doppler Effect is a term in Physics that describes the phenomenon experienced when there is change in wave frequency during the relative motion between a wave source and its observer.
In other words, it is referred to as increase or decrease in the level of sound, or other waves as the distance between source and observer is closer or farther from each other, such that it causes change in pitch, which is noticeable by the observer.
For example, when a sound object moves towards an individual or observer, the frequency of the sound waves increases, leading to a higher pitch, and at the same time, when the sound object moves away from an individual or observer, the frequency of the sound waves decreases, leading to a lower pitch. E.g passing siren from ambulance.
Hence, in this case, the right answer is DOPPLER EFFECT
Answer:
The Great Leap Forward began in 1958.
During this time,grain production lost from 200 million tons to 210 million tons.
This resulted in tens of millions of deaths, with a hold extend between 18 million and 45 million deaths.
Explanation:
It’s either A or B but it depends on where. For me, lanes are divided by white lines.
Answer:
B. encouraging citizens to help people in need.
Explanation:
Civic responsibility refers to increasing our participation in the advancement of our society to achieve a common good. This could be done in these following ways:
- Encouraging members of society to help each other. This can done through various forms of activism that is done to help the people in need.
- Making sure that we take care of the infrastructures that are intended for public use.
- Paying our Taxes. In return of enjoying public services and infrastructures, we need to pay our fair share in form of tax cut.
