Answer:
The volume of a sphere with radius "r" is given by the formula: V = (4/3) * π * r^3.
The volume of the golf ball (with radius 4 cm) can be calculated as:
V_golf = (4/3) * π * 4^3 = (4/3) * π * 64 = 256/3 * π cubic cm.
The volume of the ping pong ball (with radius 8 cm) can be calculated as:
V_pingpong = (4/3) * π * 8^3 = (4/3) * π * 512 = 2048/3 * π cubic cm.
Since the radius of the ping pong ball is double the radius of the golf ball, its volume is 2^3 = 8 times greater than the golf ball. That is, V_pingpong = 8 * V_golf.