13) A mass oscillates on a horizontal spring. It's velocity is v, and the spring exerts force F, At the time Position x

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13 A Mass Oscillates On A Horizontal Spring It S Velocity Is V And The Spring Exerts Force F At The Time Position X 1 (57.72 KiB) Viewed 10 times

13) A mass oscillates on a horizontal spring. It's velocity is v, and the spring exerts force F, At the time Position x T A M 0 indicated by the a. v, is + arrow and F, is +. and F, is- b. v, is + c. v, is- and F, is 0. d. v, is 0 and F, is +6. e. v, is 0 and F, is -. 4) A block is attached to the end of a spring. The block is then displaced from its equilibrium position and released. Subsequently, the block moves back and forth on a frictionless surface without any losses due to friction. Which one of the following statements concerning the total mechanical energy of the block- spring system is true? a. The total mechanical energy is only kinetic energy since there is no change in the gravitational potential energy. b. The total mechanical energy is at its maximum when the block is at its equilibrium position. c. The total mechanical energy is constant as the block moves back and forth. d. The total mechanical energy is only dependent on the spring constant and the mass of the block. 5) A ball is attached to a vertical spring. The ball is initially supported at a height y so that the spring is neither stretched nor compressed. The ball is then released from rest and it falls to a height y-h before moving upward. Consider the following quantities: translational kinetic energy, gravitational kinetic energy, elastic potential energy. When the ball was at a height y- (h/2), which of the listed quantities has values other than zero joules? a. Translational kinetic energy only. b. Gravitational potential energy only. C. Elastic potential energy only. d. Translational kinetic and elastic potential energies only. e. Translational kinetic, gravitational potential, and elastic potential energies. 5) Which one of the following statements concerning Hooke's law is false? a. Hooke's law can be applied to a wide variety of solids. b. Hooke's law is valid only for springs. c. Hooke's law can be verified experimentally. d. Hooke's law can be applied to a wide range of materials. e. Hooke's law is valid only within the elastic limit of a given material.