| http://www.w3.org/ns/prov#value | - It is obvious that objects such as baseballs and golf balls cannot be streamlined.??? Form drag will have a large effect on their motion if it is not reduced.??? This is accomplished by the rotation of the balls.??? As a ball spins it drags air around its surface.??? This air will help to fill the partial vacuum behind the ball.??? Subsequently, the unbalanced pressures on the ball will be reduced
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