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Physics, 23.05.2020 01:05 sanchezp0821
What did the ancient Greeks determine that was the first step in understanding distances in the universe? -the distance from Athens to Rome -the diameter of the moon -Earth's circumference -the distance to the sun
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Physics, 23.06.2019 03:00
Suppose that a cylindrical tank 6 meters high with a radius of 2 meters is filled to the rim with water. the tank is buried so that the top of the tank is 1 meter below ground level. the space above the tank is not filled with water. calculate how much work needs to be done by a pump to pump the water out of the tank up to ground level. (the water weighs 9,800 newtons per cubic meter.)
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