Abag of sand has a density of 45 g/cm3 and a mass of 15 kg. how much space does the sand take up?

a. 3 cm3
b. 675 g/cm3
c. 333 cm3

Distinguish between a transverse wave and a longitudinal wave.

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

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?