A4 kg textbook sits on a desk. it is pushed horizontally with a 50 n applied force against a 15 n frictional force.
a. draw a free body diagram for the textbook.
b. what is the motion in the vertical?
c. what is the net horizontal force acting on the book?
d. what is the net force acting on the book? e. what is the acceleration of the book?

Which of the following statements are evidence that gases do not always behave ideally? check all that apply.? a. co2 gas becomes dry ice (solid co2) at 1 atm and –78.5 °c. b. when two gases are mixed, they follow dalton\'s law of partial pressures. c. at 4 k and 1 atm, helium is a liquid. d. it is impossible to compress a gas enough so that it takes up no volume.