A 10kg ball is measured moving in a straight line at 4m/s. After 10s the ball is measured moving 9m/s. What is the acceleration of the ball.

Stephen is a student who wants to test his knowledge of medical terminology. which option could he use?

Which hormone is used by both males and female?

Which of the following statements best distinguishes a hypothesis from a theory? a. theories are hypotheses that have been proved. b.hypotheses are guesses; theories are correct answers c. hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. theories are proved to be true; hypotheses are often contradicted by experimental results.