Here is the answer. In order for us to get the speed, we are just going to use the formula speed is equal to distance over time. Given that the distance s 200m and the time is 25s, this would give us the answer of 8m/sec. Hope this answers your question.
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your language is to different to mine sorry
The strong magnetic fields is Long rang attractive power Reuther then week magnetic field.
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The light scatters in all directions.
