You know that 1 litter is the volume of a cubic decimeter (1dm=10cm=0.1m) that is 1l =1dm^3 you build a cube-shaped aquarium for fish, each edge of the aquarium for fish, each edge of the aquarium having a length of 1 meter. how many much water do you need to fill it ?
asap!

The two required components for a generator are

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?

Often called simply "velocity," this is the velocity of an object at a particular moment in time.