Cumulative Exam — Cumulative exam Answers

A train travels 600 km in 4 hours. What is the speed of the train?

Four springs are stretched to the same distance from the equilibrium position. The spring constants are listed in the table.

A stretched spring has 5184 J of elastic potential energy and a spring constant of 16,200 N/m. What is the displacement of the spring?

A puppy finds a rawhide bone and begins to pull it with a force, Ft. The free-body diagram is shown.

Derek needs a tool that delivers 5.00 mL of a sodium hydroxide solution. Which tool would be best for him to use?

Russ makes the diagram below to organize his notes about how Newton’s first law describes objects at equilibrium.

A twirler’s baton is 0.76 m long and spins around its center. The end of the baton has a centripetal acceleration of 47.8 m/s2.

What is an advantage of genetically engineered biological pacemakers developed by biomedical engineers over electronic pacemakers?

When the first periodic table of the elements was published, the elements were arranged by atomic mass. Although several elements seemed out of order, later discoveries showed the order to be correct. Which event most likely helped the development of the periodic table?

Kamala puts on inline skates and stands facing a wall. When she pushes against the wall, she rolls backward.Why does pushing harder make her roll faster?