Which sound wave, A or B, has higher intensity?
Alice
A

B

8. why do radio telescopes convert radio waves (analog signals) to electrical (digital) signals for analysis? (hint: what did the article say about the advantages of digital signals? )

Which graph represents motion with an object with positive velocity that is located at a position of 3 meters at a time of 0 seconds? a) a b) bb eliminate c) c d) d

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up