The Cart start at position x=0 mm at time t=0s , if the length of the index card is 5cm, and the distance between the photogates is 290 mm, Time 1.075 State 1=1
Time 1.185 State 1=0
Time ?? State 2=1
Time ?? State 2=0
What is the speed of the cart
What is the position of Gate 1
Write the expression for position vs Time for the cart
At what time dose the cart leave gate 2?

answer(20) psi;

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.