Consider a system that consists of two carts on a frictionless track and an ideal spring which is held compressed between them. The carts each have a mass of 0.5 kg and the track is supported on a table 1 m above the ground. The spring constant of the spring is 200N / m and it has been compressed 10 cm from its equilibrium length when the carts were pushed together . Which of the following indicates how much potential energy the system has? ( Note: useg=10 m/s^ 2 ) .

Employer informs its employees that it will hold a substantial cash prize drawing for each work group at the end of each month in which no employee in the work group sustains a lost-time injury. tyra reports an injury that she sustained while operating a mechanical power press. tyra did not violate any employer safety rules when she sustained her injury. tyra’s injury requires her to miss work for two days. her employer cancels the cash prize drawing for that month for tyra’s work group because of tyra’s lost-time injury. did the employer misuse an incentive program to retaliate against tyra?