Hey student with a mass of 70 KG standing on the surface of the earth. The earth has a mass of 5.98E54 kg and the student is 6.38E6 meters from the center of the earth. What is the magnitude of the force of gravitational attraction between the student in the center of the earth?

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.

the answer you are looking for is d. there are no holes for blood to enter or leave the system. your welcome