Asuper train is moving along a track at a speed close to the speed of light. you are watching the train from the ground. you observe lightning to strike in two places along the track, a mile apart, at precisely the same time. what would someone on the train say?

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy

Each line (unit) on the horizontal axis represents: 5 years 10 years 20 years all of the above