![Chemistry](/tpl/images/cats/himiya.png)
![answer](/tpl/images/cats/otvet.png)
Answers: 3
Other questions on the subject: Chemistry
![image](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 22:30, 20heldmadison
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
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 05:00, smartboy2296
Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change
Answers: 3
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 05:50, zaleemawhite
Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.
Answers: 2
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 18:00, heggestade
To apply in a gold the individual gold atoms are united to each other by means of a metallic bond. how would you use the gold block to determine the atomic radius of a gold atom?
Answers: 3
Do you know the correct answer?
What is the temperature (°c) of 1.75 g of o2 gas occupying 3.10 l at 1.00 atm? enter your answer in...
Questions in other subjects:
![Konu](/tpl/images/cats/health.png)
Health, 13.10.2020 09:01
![Konu](/tpl/images/cats/mat.png)
Mathematics, 13.10.2020 09:01
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/biologiya.png)
Biology, 13.10.2020 09:01
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 13.10.2020 09:01
![Konu](/tpl/images/cats/mir.png)
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/en.png)