Answer Happy

6) A spring with a 2kg mass has a period of 12 seconds. What is the spring constant for the Spring? 7) What is the length of the pendulum in a grandfather clock (Swings every 2 seconds)? 8) How long does the pendulum have to be to have a period of 1 year? ( 4 - XA 9) Which of the following statements about the block is correct? (A) ATX - 0, its acceleration is at a maximum. (B) At x = A, its displacement is at a maximum. (C) Atx-A, its velocity is at a maximum. (D) Atx - A, its acceleration is zero. Which of the following statements about energy is correct? 10) (A) The potential energy of the spring is at a minimum at x -0. (B) The potential energy of the spring is at a minimum at x - A. (C) The kinetic energy of the block is at a minimum at x 0. (D) The kinetic energy of the block is at a maximum at A