Two forces, f1 and f2 (with f1 > f2), act on an object of mass m. the two forces act along the same line but in opposite directions. which formula gives the acceleration of the object due to these forces? a) (f1 – f2) / m b) (f1 + f2) / m c) m / (f1 + f2) d) m / (f1 - f2)

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.