Which of the following forms an interference pattern when directed towards two suitably spaced slits?
a. light
b. electrons
c. sound
d. all of the above
e. none of the above

Diego kicks a soccer ball from the end line. his fellow students time and mark the soccer ball as it moves down the field. the graph represents the ball's progress. based on the graph, during what time is the velocity constant and positive?

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? round your answer to the nearest tenth. s how far will the football travel before it lands? round your answer to the nearest tenth. m

Which of the following is most likely to be the best conductor of electricity? oxygen chlorine aluminum chromium