(1) Sound travels at 1100 feet per second in air.

(2) Sound travels at 1,100 feet per second.

(3) 30,000 degrees fahrenheit at 20,000 feet per second.

(4) A bullet goes from this gun with a velocity of 3000 feet per second.

(5) At this moment the snake strikes, flinging its neck towards its victim at the astonishing speed of 8 feet per second.

(6) In San Marcos, river conditions can be adversely affected when spring flow drops below 100 cubic feet per second.

(7) On Friday morning we awoke to frigid temperatures and a San Juan River running at about 500 cubic feet per second.

(8) Lois lane is falling accelerating at an intial rate of 32 feet per second per second.

(9) In this case, the 33 megajoules launched the shot 5,500 feet per second, exceeding the speed of sound and releasing a sonic boom.

(1) A bullet goes from this gun with a velocity of 3000 feet per second.