How does the kinetic energy of the system change as a result of the explosion, as seen in the observer's frame of reference? express your answer as a ratio of the change in kinetic energy to the initial kinetic energy (latex: \frac{\delta k}{k_{init}}δ k k i n i t).

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.