The coefficient of static friction between a rubber tire and dry pavement is about 0.800. assume that a car’s engine only turns the two rear wheels and that the weight of the car is uniformly distributed over all four wheels. (a) what limit does the coefficient of static friction place on the time required for a car to accelerate from rest to 60 mph (26.8 m/s)? (b) how can friction accelerate a car forward when friction opposes motion?

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

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.