Show the complete solution: 1. Spherical balls 1.5 cm in diameter area packed in a box measuring 6 cm by 3 cm by 3 cm. If as many balls as possible are packed in the box. How much free space remains...

Show the complete solution: 1. Spherical balls 1.5 cm in diameter area packed in a box measuring 6 cm by 3 cm by 3 cm. If as many balls as possible are packed in the box. How much free space remains in the box? a. 28.41 cc b. 20.47 cc c. 29.87 cc d. 25.73 cc