Mr. gewanter, whose mass is 60.0 kg, is doing a physics demonstration in the front of the classroom. a) how much gravitational force does he exert on 55.0-kg martha in the front row, 1.50 m away? b) how does this compare to what he exerts on 65.0-kg lester, 4.00 m away in the back row?

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.