A railroad handcar is moving along straight, frictionless tracks with negligible air resistance. In the following cases, the car initially has a total mass (car and contents) of 190 kgkg and is traveling east with a velocity of magnitude 4.80 m/sm/s. Find the final velocity of the car in each case, assuming that the handcar does not leave the tracks.

show the wavelengths of a wave. show the crests of a wave.

the answer is 12 as i may remember

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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.