Not too long. Cheese contains milk so you can't leave it warm. I would say if it was past room temperature for more than 45 minutes to an hour and half it probably shouldn't be eaten.
Depends on how old you are. I would only be able to do 2 minutes.
I'll go with the burgers.
Kids can get scalded by the hot water in the "HOT TUB".
Stay out in the hot sun for a LONG time.
Because it has a high specific heat.
The cheese may be very old and molded.
As long as they have flue to heat the balloon.
If it got too hot then I wouldn't. Cheese does contain milk so it wouldn't be good to eat it if it got too warm.
Friction
Icy Hot stays on for about 3 hours and works very well!
because when a car is on to long it will shut off because it was on to long
Coffee can stay hot in a carafe for about 1-2 hours, depending on the quality of the carafe and how well it retains heat.