4.5.54 - 1017 joules of energy is the equivalent of how much mass in kg?

Air flows upward in the wick of a lantern because of the liquid property called

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

If you held a stone over the mouth of a well and then let it go , what would happen to the stone? explain your answer.