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.
The cheese may be very old and molded.
Because it has a high specific heat.
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.
As long as they have flue to heat the balloon.
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.