If you closely examine a wood screw, you will see that the threads on it form a long wrapped around a cylinder.
a) wedge
b) pulley
c) inclined plane
d) wheel and axle

What is the mass of sodium in 3 moles of sodium chloride

Predict the products butane (c4h10) + oxygen —>

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.