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At a date and dash event, girls sit at the tables, while the guys move from one girl to the next as soon as the whistle blows.
When the wind blows it causes energy to move around and makes objects move.
a train is standing on a platform a Man inside a compartment of a train drops a stone.at the same instant train starts to move with constant acceleration.the path of the of the particle as seen by the person who drops the stone will be
When you are on a train. When the train is in a station.
My brain is too small
grass whistle
Because the wind blows it on windy days.
it sucks watter in and blows it out thru its mouth.
When the wind blows it causes energy to move around and makes objects move.
Put ur fingers on the whistle and blow and move ur fingers all different ways BOOM
It is the effect that happens when waves like sound are moving in relation to another object. In the classic train whistle example, The whistle suddenly drops in pitch as it passes you and starts to move away from you. This is because the sound waves now are stretched out, giving them a lower pitch. It is useful. Doppler radar used in weather forecasting is one example.
That instrument is called a slide whistle. It produces sound by varying the length of the air column inside the whistle by moving the slide up and down.