A 300 g ball with a speed v of 6.0 m/s strikes a wall at an angle of 30o and then rebounds with the same speed and angle. It is in contact with the wall for 10 ms. (a) Calculate the impulse experienced by the ball. (b) Calculate the average force exerted by the ball on the wall.

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.