The definition of disability under Social Security is different than other programs. Social Security pays only for total disability. No benefits are payable for partial disability or for short-term disability. We consider you disabled under Social Security rules if: You cannot do work that you did before;
UCSB Science Line. A rocket ship, on its way to the moon, can get up to almost 25,000 miles per hour in order to escape the Earths atmosphere. However, it does not go that fast the whole way. Also, the ship cannot fly directly from the Earth straight to the moon surface.
There are two possible questions here. The first is simply how long would it take for a laser to travel to the moon and back. The moon is around 384,000 km away. The speed of light is 299,792,458 m/s. The journey is round trip, so: However,...