A car weighing 5,500kg travels at a speed of 55km/h up a 15m hill. What is its mechanical energy? Hint: In order to answer this question, you need to find the PE and KE first.

because if the tool that you are using is not balanced it there would be false mass.

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.

its a circle not a square that's simple silly.

explanation: