Discover Questions

How do we know that the Galaxies are not moving in unison just like runners in tracts moving at different speeds but same angular velocity? If the light resulting from so called nuclear fusion produces a color temperature of Green,how come we see the Sun from Earth as amber? Would a star cluster with medium-mass protostars be more likely to also have red dwarfs or white dwarfs at the same time? A car is traveling at 50 mph goes around a curve that has a radius of 75 feet. what is the car s angular velocity in revolutions per minute? Find all θ between 0 and 2π that satisfy the following: tan θ = -2.662 and cos θ > 0.?