I need girl advice!! 4 months ago dad made me break up with my bf. I had to do it over text. I've dated multiple people since then, but I cannot get him out of my head. Every time I think of him and all of our time together, I start crying. I miss him so much, but I'm not allowed to talk to or see him anymore. What should I do??

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

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.

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.