Two of the four forces are exerted on the stick. What predictions is correct about the change in angular velocity of the stick per unit of time?

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?

Apossible explanation for a set of facts that can be tested by further investigation is called

To a of 4 x hz is 1. 0. mm nm nm