According to kepler's third law, a solar-system planet that has an orbital period of 8 years would have an orbital radius of about year(s)

Orbital period, T = 1.42 years

Explanation:

It is given that,

Orbital period of a solar system planet,

The orbital period of the planet can be calculated using third law of Kepler's. It is as follows :

M is the mass of the sun

r = 1.42 AU

So, the solar-system planet that has an orbital period of 8 years would have an orbital radius of about 1.42 AU.

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.