A helicopter stays aloft by pushing large quantities of air
A helicopter stays aloft by pushing large quantities of air downward every second. What mass of air must be pushed downward at 40.0 m/s every second to keep a 1,000 kg helicopter aloft?
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based on the following quote from heart of darkness by joseph conrad what is the narrators view of explorationwatching
a helicopter stays aloft by pushing large quantities of air downward every second what mass of air must be pushed
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