Vx = 20 m/s , vy = 40 m/s . find the vector's direction. express your answer using two significant figures.

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

The solid that is formed and usually sinks to the bottom of a solution is the

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.