Air enters an adiabatic turbine at 900 k and 1000 kpa. the air exits at 400 k and 100 kpa with a velocity of 30 m/s. kinetic and potential energy changes are negligible. if the power delivered by the turbine is 1000 kw, a. find the mass flow rate. b. find the diameter of the duct at the exit

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray

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.