friction in machines is undesirable becouse becouse the materials used to make them are always in griding form. ALLY S. MUBA-ngarambe
Computers run on electricity. The metals and semiconductors out of which the computer components are made all have a slight resistance to the flow of the electric current and this causes them to heat up in use.
Due to friction
yes it does give a low heat capacity.
Retain. And give. Off heat and energy
when the materials are being broken down, the microbes warm up and give off heat.
four parts KNO3 to six parts suger melt and ster over a low heat till it goes brown then pack it in to a container. when lit it should give off a cloud of brown smoke (If you add colouring to the mixture the colour of the smoke will be that colour).
It's to reduce friction (and thus heat) generated while the machine's parts are moving.
Because the electrical parts of a transformer do not move / rotate.
Friction creates heat. Heat could melt machine parts if it becomes too high. That's why many machines use lubricants while they're drilling or shaping metal.
The grease is there to lessen friction between two metal parts. Without grease the moving parts would heat up due to the friction.
energy used for the machine will get lost as heat .machine parts will get worn out.
Tail and Ears
Most man- made machines have relatively low efficiency. For instance, a car or aeroplane is very noisy and will get very hot. This noise and heat is wasted energy and makes up a significant proportion of the total energy (fuel) input.
The main purpose of a heat sink is to expel heat from a generating source. Heat sinks work through the process of conductive and convection heat transfer. Heat sinks are a passive form of cooling, as they have no moving parts and require no power.
Machines heated up due to the friction caused due to their running internal parts. That's's why machines are oiled or greased to reduce friction and to produce less heat
Lubricating oil is used to reduce friction between moving parts and to prevent damage due to excess heat. Lubricating oil also carries away sludge preventing the erosion of moving parts.
How - with cooling oil Why - because friction causes heat, and overheating is bad for moving parts.