John starts at his locker and walks past his 3rd period class straight to his friends locker that is 27 m away. It takes him 14 seconds to get to his friends locker. After hearing the bell ring, he quickly goes back to his classroom 18 m away in 8 seconds.

An airplane flying parallel to the ground undergoes two consecutive displacements. the first is 76 km at 39.8◦ west of north, and the second is 156 km at 59.9◦ east of north. what is the magnitude of the plane’s total displacement? answer in units of km. 020 (part 2 of 2) 10.0

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon