In july of 1999 a planet was reported to be orbiting the sun-like star iota horologii with a period of 320 days. find the radius of the planet's orbit, assuming that iota horologii has the same mass as the sun. (this planet is presumably similar to jupiter, but it may have large, rocky moons that enjoy a relatively pleasant climate.)

Explanation:

To solve this problem we need to apply Kepler's third law.

Kepler's third law tells us that

Where

T= 320Days ( Period)

r = radius

G =   Gravitational constant

M = Mass of the object, sun in this case

Then,

We need to re-arrange for R, so

Replacing

Therefore the radius of the star is

close lines strong magnet less close weaker

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force