A horizontally moving tennis ball barely clears the net, a distance y above the surface of the court. To land within the tennis court the ball must not be moving too fast.
To remain within the court's border, a horizontal distance d from the bottom of the net, Find the ball's maximum speed over the net.
Express your answer in terms of the variables d, y, and appropriate constants.
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Ответ:
These acts all helped the countries form new states. These acts all helped to move frontiers further westward.
Explanation: