That is legal, as long as your hand only touches the top hemisphere of the ball.
Yes. It is not possible to travel while dribbling. The height of the dribble is also irrelevant.
Yes - the greater the height an item dropped the resulting bounce is higher
Yes - the greater the height an item dropped the resulting bounce is higher
Yes - the greater the height an item dropped the resulting bounce is higher
Yes - the greater the height an item dropped the resulting bounce is higher
it's usually half of each bounce i believe.
They higher the point at which it's dropped the higher it will bounce.
Yes it does
Height of bounce will not depend on the mass at all. It depends on the elasticity of the ball and the height where from it is dropped.
eggs don't bounce so, no
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The amount of energy given to the ball by gravity is directly proportional to its height of dropping. Typically, a ball will bounce to a certain percentage of its drop-height. So (within limits) higher drop-height means higher bounce.