Using your hand to exert a horizontal force, you push a physics textbook across the floor at a steady pace. the frictional force exerted by the floor on the book opposes its motion. is the “push” force exerted by your hand greater than, less than, or equal to that frictional force?

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.