What is 319 in sicentific notation?

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j

How do we measure or think of speed in the united states?

Explain what happens at the saturation point when adding salt to water at room temperature.