Provide one way that neglecting your finances in college can impact your post-college life

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

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 sound characteristic is not affected by the relative motion of an object