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**A**) Using the data provided, calculate the orbital velocity of the satellite.

**B**)Find the period of the satellite.

**C**)How would you answer to (a) change if the satellite was twice as massive? Explain how you know.

**D**) How would you answer to (a) change if the satellite was to be twice as far from the surface of Mars?

Please explain thoroughly. I really don't understand any of this stuff and need help studying.

**The attempt at a solution**

I could only do part A and I used the square root of Gm/r which equals

the square root of (6.67E-11)*(6.42E23)/3398km which equals 3398000m and my answer was 3549.921453 m/s

Everything else I'm soooo lost and going to cry bc I don't understand