Universal gravitation 2- determine the planet's orbital period

[dani123]

Homework Statement

A planet's mean distance from the sun is 2.00x10^11 m. Determine the planet's orbital period. Use information found in textbook.

Homework Equations

So I use the following equations:

R=h+R_s

T=2∏√(R³/GxM_s)

From the textbook I got the following values:

R_s=6.96x10⁸m
m_s=1.99x10³⁰kg

The Attempt at a Solution

From the problem we also know that h=2x10¹¹m

So with that and the radius of the sun we are able to find the radius that will be used in the orbital period equation. R=(6.96x10⁸m)+(2x10¹¹m)=2.007x10¹¹m

with all these values we plug them into the orbital period equation and solve for T=49034131.61

I don't know how to get the units for the period however... If someone could tell me if my calculations are correct and how I find these units that would be greatly appreciated! Thank you so much in advance for your time and help!

 

[HallsofIvy]

Since you just wrote numerical values for "R", "R_s", h, and "M_s" without saying what any of those mean I don't see how anyone can determine what you are doing much less what the units should be.