Recent content by jamesc5

I tried switching days to seconds and i got T=110592000 seconds so i changed my equation... (11059200)^2=4pi√((4.9E11)^3)/(6.67E-11)m) 9.733E14=√((4.9E11)^3)/(6.67E-11)m) 9.473E29=((4.9E11)^3)/(6.67E-11)m) (1.42E40)m=(4.9E11)^3 m=8.234E-6 I changed it to seconds, but I still don't seem...

Homework Statement In recent years, a number of nearby stars have been found to possesses planets. Suppose, the orbital radius of such a planet is found to be 4.9 1011 m, with a period of 1280 days. Find the mass of the star. Homework Equations T^2=4pi√((r^3)/Gm)) The Attempt at a...