Asurface receiving sound is moving from its original position to a position three times farther away from the source of the sound. the intensity of the received sound thus becomesa. three times as high .b. nine times as high. c.nine times as low .d. three times as low

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.

The photo shows sugar dissolved into a solution with excess sugar at the bottom of the jar this type of solution is classified as a. unsaturated b. compound c. saturated d. plasma

What happens during the fall in september