Abook is sitting on a shelf. unless someone picks it up or something knocks it off, it will continue to sit there. this is because

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

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?