In a high speed car crash which type of collision is preferred and why? A- an elastic collision because kinetic energy is conserved

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?

Bonds within one water molecule are examples of

Why does some plastic stick to your skin?