The older, geocentric model of the solar system placed at the center. today's heliocentric model places at the center of the solar system.

the answer is earth for the first one and sun for the second one

Earth

Sun

Explanation:

The heliocentric model opposes the geocentric model by placing the sun at the center of the solar system as opposed to the earth as it is with the geocentric model

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

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

answer

the arrows to the right of earth should point up.