3. which of the following statements about features on the sun is true?
a.) prominences look dark in regular photographs.
b.) solar flares form when prominences connect.
c.) the number of sunspots on the sun's surface is always the same.
d.) sunspots can greatly increase the solar wind.
me out!

Aspecial electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop ride at an amusement park. the sensor measures the magnitude of the normal force that the seat exerts on a rider. the loop-the-loop ride is in the vertical plane and its radius is 23 m. sitting on the seat before the ride starts, a rider is level and stationary, and the electronic sensor reads 740 n. at the top of the loop, the rider is upside down and moving, and the sensor reads 370 n. what is the speed of the rider at the top of the loop?

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories

How is zig zagging a form of acceleration?