Asoccer player kicks a ball horizontally off a 40.0-m-high cliff into a pool of water. if the player hears the sound of the splash 3.00 s later, what was the initial speed given to the rock? assume the speed of sound in air is 343 m/s. determine the speed of the ball immediately before it reaches the pool of water.

the speed of the ball before it reaches the pool of water would be 9.91 m/s.

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

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pe = weightxheight = 2000x1000=2,000,000joules