Electron dot diagrams for four elements are shown. Which element would be found in Group 14? A. 4 C. 1 D.2

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?

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

How does an observation about an object differ from an inference about that object