A red shirt under a red light appears pale because red
An electron falls from an energy level of -5.44eV to another energy level, E. If the emitted photon is of wavelength 5.68 x 10\(^{-6}\)m, calculate the energy change. [ Plank's constant = 6.63 x 10\(^{-34}\)Js, emitted radiation speed = 3.0 x 10\(^8\)ms\(^{-1}\)]
Using the diagram above, the effective force pushing it forward at an angle 60º is
The gravitational force between two objects is 10N, what is the new value of the force if the distance between them is halved?
An ideal transformer has
