(Solved): A 23.1-kg sphere \( A \) of radius 90 mm moving with a velocity of magnitude \( v_{0}=2 \mathrm{~m} ...

A 23.1-kg sphere \( A \) of radius 90 mm moving with a velocity of magnitude \( v_{0}=2 \mathrm{~m} / \mathrm{s} \) strikes a \( 2.1-\mathrm{kg} \) sphere \( B \) of radius 40 mm that is hanging from an inextensible cord and is initially at rest. Knowing that sphere \( B \) swings to a maximum height \( h=0.350 \mathrm{~m} \), determine the coefficient of restitution between the two spheres. (Round the final answer to three decimal places.) The coefficient of restitution between the two spheres is