a level mechanics newton’s third law question

the question is:A ball of mass 6.5 kg is suspended by a vertical string and is in contact with a horizontal table. The string can be modelled as light and inextensible.a) Find the magnitude of the normal reaction force between the ball and the table when the tension inthe string is 38 N.b) Find the minimum tension force required to lift the ball off the table.i’ve done a) but i need help for b)