An astronomer wants to observe at a particular wavelength using one of the telescopes listed. Arrange these telescopes from worst to best angular resolution based on the diffraction limit. Worst resolution to Best resolution.1. personal 8-inch telescope 2. Mayall 4-Meter Telescope at Kitt Peak National Observatory 3. 2.1-meter Otto Struve Telescope at McDonald Observatory 4. Nickel 1-meter telescope on Mt. Hamilton 5. 10.4-meter Gran Telescopio Canarias

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th

The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.

You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?