An electron moving parallel to the x axis has an initial speed of 3.90 x 106 m/s at the origin. Its speed is reduced to 1.20 x 105 m/s a t the poi nt x. Ca l c ul a te the potential difference between the origin and pointx. Which point is at the higher potenti a l

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles

What is the rate of change in a objects position?