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26 Nov 2019
1.A hot-air balloon achieves its buoyant lift by heatingtheair inside the balloon, which makes it less dense than theairoutside. Suppose the volume of a balloon is 1600 m3and the required lift is2200 N (rough estimate of the weightof theequipment and passenger). Calculate the temperature of theairinside the balloon which will produce the required lift. Assumethatthe outside air temperature is 0°C and that air is anideal gasunder these conditions.
1°C
What factors limit the maximum altitude attainable by thismethodfor a given load? (Neglect variables like wind.)
2.An ordinary glass is filled to the brim with 359.0 mL of water at100°C. If the temperaturedecreased to 22°C, how much watercould beadded to the glass?
1 mL
1.A hot-air balloon achieves its buoyant lift by heatingtheair inside the balloon, which makes it less dense than theairoutside. Suppose the volume of a balloon is 1600 m3and the required lift is2200 N (rough estimate of the weightof theequipment and passenger). Calculate the temperature of theairinside the balloon which will produce the required lift. Assumethatthe outside air temperature is 0°C and that air is anideal gasunder these conditions.
1°C
What factors limit the maximum altitude attainable by thismethodfor a given load? (Neglect variables like wind.)
2.An ordinary glass is filled to the brim with 359.0 mL of water at100°C. If the temperaturedecreased to 22°C, how much watercould beadded to the glass?
1 mL
1°C
What factors limit the maximum altitude attainable by thismethodfor a given load? (Neglect variables like wind.)
2.An ordinary glass is filled to the brim with 359.0 mL of water at100°C. If the temperaturedecreased to 22°C, how much watercould beadded to the glass?
1 mL
Beverley SmithLv2
14 Jan 2019
