Which ramp requires the least amount of force? A man pushes a ball on a ramp with an arrow after the ball pointing up the ramp. The ramp is labeled with length 2 feet and height 1 foot. A man pushes a ball on a ramp with an arrow after the ball pointing up the ramp. The ramp is labeled with length 3 feet and height 1 foot. A man pushes a ball on a ramp with an arrow after the ball pointing up the ramp. The ramp is labeled with length 4 feet and height 1 foot.

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