Awater balloon is thrown at an angle of 30° with a velocity of 40 m/s. how long do you have to move out of the way if the balloon was 20m away from you when it was thrown?

t=0.58s

Explanation:

We can consider only the horizontal component since the horizontal component of the velocity is constant (), and we want to know how much time it takes for the balloon to travel a horizontal distance at that speed. The definition of (horizontal) velocity is , so we have:

true is the correct answer

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as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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