What is an out. of. body. experience and how can you make it happen?

How do you tell if someone actually cares about you? and just say they do?

Two trains leave a station at the same time, train a travels at a constant speed of 16 m/s. train b starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. after 10.0 seconds, which train has the greater speed?

Which of the following list the divisions of the geologic time scale in order from longest to shortest