1.1.2. Give a description of a recent (2018-2020) example of how xenophobia has displayed itself in your community​

One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?