"consider the following systems: i) water behind a dam. ii) a swinging pendulum. iii) an apple on an apple tree. iv) the space shuttle in orbit. in which of the systems is potential energy present? "a. i and ii b. i, ii and iii. c. ii, iii and iv. d. ii and iv .e. i, iii and iv.

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s