At 30,000 feet, the density of the air is about half that at sea level. Doesn’t that make it harder to generate lift? Why do they fly so high?
How high will a hot air balloon rise if the temperature inside is maintained at 340 K? Assume that the ambient temperature is 300 K. Assume that the pressure inside and outside are the same, but the density inside is reduced by heating. It is convenient to reference the calculation to the temperature of the atmosphere T0 = 300 K. This temperature corresponds to the density at sea level. To what height does the air balloon rise? Please give your answer in meters.
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liquid with at sea level, what height of a hypothetical liquid with density 1.40 times that of mercury could be supported? answer in units of mm. your answer in units of mm. your must be within more or less 0.1%
liquid with a density 1.40 times that of mercury could be supported? answer in units of mm. your answer must be within more or less 0.1%