Please help A satellite is placed in equatorial orbit above Mars, which has a radius of
3.397 × 10^6 m and a mass MM = 6.40 × 10^23 kg. The mission of the satellite is to observe the Martian climate from an altitude of 5.25 × 10^5 m. What is the orbital period of the satellite?

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.