Asnowmobile is used to pull one sled across the ice. the mass of snowmobile and the rider is 315 kg . the mass of the sled is 150 kg. the coefficient of kinetic friction for the sled on ice is 0.15 and the coefficient of kinetic friction on the snowmobile is 0.25. the acceleration of the snowmobile and the sled is 1.9m/^2.
a. what is the net force acting on the system?
b. what is the tension in the rope between the sled and the snowmobile?
c. what is the applied force on the snowmobile?

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.