EXERCISE A particle with velocity Ü. = -2î +4h in meters per second at t = 0 undergoes a constant acceleration à of magnitude a = 3ms-2 at an angle 0 = 130° from the a o positive direction of the x axis. What is the particle's velocity Ŭ at t = 5s, in unit vector notation and as a magnitude and an angle?

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.