A physics book has a height of 26 cm, a width 21 cm, and a thickness of 3.5 cm. a. What is the density of the physics book if it weighs 19 N?

b. Find the pressure that the physics book exerts on a desktop when the book lies face up.

The radius of an atom is closest in size to a

A10-kg isto a of 10 m at aa0.9 kg/m.30 kg of ,at aas10-m .. ( 9.8 m/s2 g.)

Bradley was working in the lab. he accidentally poured a container of concentrated hydrochloric acid into his container of distilled water. not thinking much of it, he continued with his work as if nothing happened. which of these would be the result of this laboratory accident? a) the water will change to a bright pink color. b) the new solution would decrease in temperature. c) the solution has now become a good conductor of electricity. d) hcl and water have the same chemical and physical properties, so nothing would happen.