A 50-N applied force (30° to the horizontal) accelerates a 10-kg box across a horizontal sheet
of ice (see diagram). Ben Thayer, Don Thatt, and
Warren Peace are discussing the problem. Ben
suggests that the normal force is 50 N; Don
suggests that the normal force in the diagram is
75 N; and Warren suggests that the normal force
is 100 N. While all three answers seem
reasonable, only one is correct. Which is the
correct normal force? 75 N What error are the
incorrect students likely making?

elctricity and magnet is conversion to it

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.