What are the answers for the 68. waves crossword puzzle from the center for applied research in education in 1996?

How many neutrons does element x have if it’s stormy umber is 33 and it’s mass number is 95?

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?

What is a subatomic particle with a negative charge and very little mass?