17. Balloons used helium at atmospheric pressure 101.325kPa and temperature 26°C. It is projected to lift and move logs from almost distant forest areas by means of balloons. What minimum balloon diameter will be required for a gross to move upward force of 30metric tons? a. 37.1934m b. 37.3607m c. 37.3190m d. 37.40226m
17. Balloons used helium at atmospheric pressure 101.325kPa and temperature 26°C. It is projected to lift and move logs from almost distant forest areas by means of balloons. What minimum balloon diameter will be required for a gross to move upward force of 30metric tons? a. 37.1934m b. 37.3607m c. 37.3190m d. 37.40226m
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