Physics education research, electronic materials, and the musings of Christopher Moore, Ph.D.

A physics book has a height of 26.0 cm, a width of 22.4 cm, and a thickness of 3.10 cm.

(a) What is the density of the physics book if it weighs 18 N?
??? kg/m3
(b) Find the pressure that the physics book exerts on a desktop when the book lies face up.
??? Pa
(c) Find the pressure that the physics book exerts on the surface of a desktop when the book is balanced on its spine.
??? Pa