A light spring of constant 159 N/m rests vertically on the bottom of a large beaker of water. A 5.13 kg block of wood of density 608 kg/m 3 is connected to the top of the spring and the block-spring system is allowed to come to static equilibrium. What is the elongation ΔL of the spring?

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.