Aman is flying in a hot-air balloon in a straight line while keeping it at a constant altitude. as he approaches a parking lot and notices that the angle of depression from his balloon to a friend's car is 36º. he flew directly over the car. a minute and a half later he has travelled 360 feet horizontally; he looks back to see his friend getting into the car and observes the angle of depression to be 37º. at that time, what is the distance between him and his friend

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it

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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