I REALLY NEEDS HELP PLEASE SOME ONE SAVE ME. i need many information about measurements of lonizing radiation about Writeing 10 pages about measurements of ionizing radiation.​

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?

Which is not one of the major climate zones? question 3 options: rain forest polar tropical temperate

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little