A train traveling at 48.46 m/s is heading towards a station 339 m away. If the train must slow down with constant deceleration (a) into the station, how long does it take to come to a complete stop, in seconds? (round to 2 decimals)

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

Acup of coffee sits on the dashboard of an automobile. the car goes around a sharp curve. even though you hold the cup still, coffee still splashes out. this can best be explained due to a) density. b) friction. c) gravity. d) inertia.

The necleus of an atom is made up of what subatomic particles?