I need help with c plz

Which is a characteristic of mixtures?

Which of the following words describe the reality that the universe looks the same from various perspective

Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²