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How long before heavy cream goes bad?
It will stay in the cold part of your fridge for about a week.
Is heat the absence of cold or is cold the absence of heat?
There is no such thing as "cold" - it's just a concept/term for the absence of heat. Heat and cold are opposite sides of the same coin. You cannot have one without the other. In this sense it is part of any 'heat' engine.
Where should a fridge thermometer be place?
Since the warmer part of the fridge is the top, you want your thermometer there so you know the rest of the fridge is colder, however be sure you keep it out of the way of where the cold air blows into your fridge to avoid falsely high results.
Why is frost bad for a freezer?
The problem is, because it's a good insulator. The way a freezer works, you have a load of pipes at the back, you compress a gas in the pump, that makes it hot and loses the heat out of the back of the fridge or freezer. It then pipes this condensed, compressed room temperature gas into the freezer, it then expands, evaporates, gets cold, and so the coldest bits of the fridge are where this expanded gas is flowing through. The problem is that wants to get the heat from the fridge, but if you've got a great big layer of ice, that's going to insulate the cooling part of the fridge from the contents of your fridge, so the fridge is going to be warmer, which means that the actual fridge-freezer is going to work harder to keep cold, which means it gets even colder, it means you get more ice that will build up so it'll go horribly wrong until the fridge just conks out.
Is 'cold' a kind of energy or is it the absence of heat energy?
There is no such thing as "cold" - it's just a concept/term for the absence of heat. Heat and cold are opposite sides of the same coin. You cannot have one without the other. In this sense it is part of any 'heat' engine.
What is the white milky substance found in cut lettuce stems?
it is when the lettuce is bolting in the heat. It gets bitter. you gotta cut that part off and dunk it in cold water for a few min and then dry really well and put in your frige for a few days. if your fridge is not cold enough, turn the temp up. But if you just find it you can rinse it off and you can let it sit in the cool fridge. it is when the luttace becomes bitter and you can wash it well and dry well and set it in the fridge a few days to sweeten back up. Hope this helps.
How are THINGS kept cold in lower part of refrigerators?
The heat rises to the top. The lower part is always the coldest.
Why are cold currents not found in the northern part of the Indian Ocean?
Cold ocean currents are not found in the northern part of Indian ocean due to excess heat from sun.
What part would you need to buy if your water heater does not produce hot water?
The part that generates heat... depending if it is a gas / electric heater
If you heat with electric heat does it cost you more to leave the refrigerator door open during the winter since any lost energy goes into heat anyway?
The energy you put into running the fridge, which is that required to run the compressor, will in any case appear in the room where the fridge is situated, so if this room is in the house and not in an unheated outhouse where this energy would be lost, this energy goes towards the total you need to keep the house warm. You probably have noticed that the heat exchanger on the back of the fridge gets warm, and in fact it's best to allow some air to circulate behind the fridge to take this heat away by convection, so it does add to the heating in that room. If you leave the fridge door open, the compressor will need to run overtime, maybe even continuously, so you use more electricity for the fridge but this will help to heat the room. However the purpose of the fridge is to keep the contents cool, and with the door open you will get temperature gradients that mean part of the contents is not at the desired cold temperature, so it's not a good idea! A somewhat similar argument can be made when using low energy light bulbs instead of normal ones. You put less energy into the lighting, but that must mean you need more energy from the heating system.
Where does earth get its internal energy?
I assume you mean the heat in Earth's interior. This heat comes from three sources. (1) Heat left over from when the Earth formed. This part should be quite insignificant, since Earth has had enough time to cool down. (2) Decay of radioactive isotopes. (3) The fact that the liquid part of the Earth is gradually solidifying also generates heat.
Which part of the sun generates its magnetic field?
core
