Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
brinethery
Group Title
Scientists want to place a 2800.0 kg satellite in orbit around Mars. They plan to have the satellite orbit at a speed of 2695.0 m/s in a perfectly circular orbit. Here is some information that may help solve this problem:
mass of mars = 6.4191 x 10^23 kg
radius of mars = 3.397 x 10^6 m
G = 6.67428 x 10^11 Nm^2/kg^2
What radius should the satellite move at in its orbit? (Measured frrom the center of Mars.)
 2 years ago
 2 years ago
brinethery Group Title
Scientists want to place a 2800.0 kg satellite in orbit around Mars. They plan to have the satellite orbit at a speed of 2695.0 m/s in a perfectly circular orbit. Here is some information that may help solve this problem: mass of mars = 6.4191 x 10^23 kg radius of mars = 3.397 x 10^6 m G = 6.67428 x 10^11 Nm^2/kg^2 What radius should the satellite move at in its orbit? (Measured frrom the center of Mars.)
 2 years ago
 2 years ago

This Question is Closed

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
\[G\frac{ M _{mars} }{ r^2 } = \frac{ V^2 }{ r}\]
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
\[G\frac{ M _{mars} }{ V^2 } = r\]
 2 years ago

brinethery Group TitleBest ResponseYou've already chosen the best response.1
@Algebraic! Thank you very much, just one quick question... why is little m (mass of satellite) not included?
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
yeah, it's a bit weird to think about... but there you have it: the force due to gravity is proportional to satellite mass as is the centripetal force... so, it's immaterial what the satellite's mass is...
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
This is actually only approximately true though, for satellite mass << mass of mars... if the satellite is very massive then mars and the satellite both orbit the center of mass of the system... but that's not a concern here.
 2 years ago

brinethery Group TitleBest ResponseYou've already chosen the best response.1
Thanks... I feel like I need some major handholding through this chapter we're doing :(
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
No problem:)
 2 years ago

brinethery Group TitleBest ResponseYou've already chosen the best response.1
I'd give ya 3 medals if I could. My dad and I just went through the derivation and I can see that the little m on each side cancels out. I will live another day!
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
for sparta!
 2 years ago

brinethery Group TitleBest ResponseYou've already chosen the best response.1
I have one more question having to do with this problem: I could open up a new thread if you want me to? What should the speed of the orbit be, if we want the satellite to take 8 times longer to complete one full revolution of its orbit?
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.