23.3 meters
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A slinky is stretched across a classroom to 9 meters. A compression travels along the slinky at a velocity of 2 m s . How long does it take to travel the entire 9m length of the classroom?
1,000 meters in 1 kilometerThe prefix "kilo" in kilometer means 1000.
1 foot = 0.3048 metres
2.75 x 100 = 275 cm
1,000 meters = 1 kilometer