- #1

od943

- 5

- 0

## Homework Statement

A distant star has a single planet circling it in

a circular orbit of radius 3.33 × 1011 m. The

period of the planet’s motion about the star

is 836 days.

What is the mass of the star? The

value of the universal gravitational constant

is 6.67259 × 10−11 N · m2/kg2.

Answer in units of kg.

## Homework Equations

v = 2 π r / T

ac = v2 / r

Fc = mac

Kepler's laws?

## The Attempt at a Solution

uhhhh...have i have no idea where to start