Answers: 1
Chemistry, 21.06.2019 22:30
Hot air balloons float in the air because of the difference in density between cold and hot air. in this problem, you will estimate the minimum temperature the gas inside the balloon needs to be, for it to take off. to do this, use the following variables and make these assumptions: the combined weight of the pilot basket together with that of the balloon fabric and other equipment is w. the volume of the hot air inside the balloon when it is inflated is v. the absolute temperature of the hot air at the bottom of the balloon is th (where th> tc). the absolute temperature of the cold air outside the balloon is tc and its density is ďc. the balloon is open at the bottom, so that the pressure inside and outside the balloon is the same. as always, treat air as an ideal gas. use g for the magnitude of the acceleration due to gravity.
Answers: 1
Chemistry, 22.06.2019 09:20
Explain that newton first law,second law and third law of motion?
Answers: 2
Chemistry, 22.06.2019 22:30
Which of the following is true about the speed of light? it depends on the wavelength.
Answers: 3
Chemistry, 23.06.2019 13:30
What happens to acetone molecules when you add heat to a beaker of liquid acetone?
Answers: 1
if a soda bottle has a volume of 0.20L and a temperature of 32C what will be the pressure of carbon...
Chemistry, 06.01.2020 11:31
Mathematics, 06.01.2020 11:31
Mathematics, 06.01.2020 11:31
Biology, 06.01.2020 11:31
Biology, 06.01.2020 11:31
Business, 06.01.2020 11:31
Mathematics, 06.01.2020 11:31
Mathematics, 06.01.2020 11:31