There are always losses in using energy. Some examples:
1. A car engine uses only 30-40 percent of the energy in the gasoline, the rest is rejected in the radiator and the exhaust
2. An electric motor is better at using most of the electric power supplied, but still loses some energy in heating of the motor windings and in friction of the bearings
3. Boiling an electric kettle-you might think that all the electric power is used to heat the water, but some must be lost from the outside of the kettle to the surrounding air.
Generally machines always lose some heat which is not usefully used, by thermal losses to the environment or by internal friction
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Wiki User
∙ 12y agoWiki User
∙ 14y agoThere are always losses in using energy. Some examples:
1. A car engine uses only 30-40 percent of the energy in the gasoline, the rest is rejected in the radiator and the exhaust
2. An electric motor is better at using most of the electric power supplied, but still loses some energy in heating of the motor windings and in friction of the bearings
3. Boiling an electric kettle-you might think that all the electric power is used to heat the water, but some must be lost from the outside of the kettle to the surrounding air.
Generally machines always lose some heat which is not usefully used, by thermal losses to the environment or by internal friction.
Hot things have more energy than cold one.
low energy is when a product or object does not "consume" as much energy than a normal "object". for instance, an energy saving bulb will use less energy than a normal bulb.
We get heat energy whenever more than one molecules or atoms come into contact with each other.
A statement like "human is energy" is probably more of a philosophical statement than a physical one. In other words, we would be talking about something different than what the physicist calls "energy". If you refer to the physical energy, it will of course stay in this Universe.
Because the amplitude is what decides how much energy there is in the wave. Large amplitude = lots of energy. And lots of energy hitting something(like your ear) is more likely to do damage than a little energy hitting something.
Hot things have more energy than cold one.
No.
It could just be because she is younger than you.
A top footballer needs more energy in their diet than we do because they play football all the time and train everyday, so they are more active than us. The energy comes from the fat in the food.
because that means less energy is used. if something is more efficient than something else it is so because it can either use less energy to do the same thing or the same amount of energy to do more
More nuclei of more atoms than you started out with, less mass than you started with, and some energy.
low energy is when a product or object does not "consume" as much energy than a normal "object". for instance, an energy saving bulb will use less energy than a normal bulb.
well considering kinetic energy is the energy something has when it is moving than i would say cold because it runs more and drips faster
No. It's just another untapped resource that we should be using.
No because when you eat something slowly, in this case its a apple, it doesn't take that much energy to eat and the more energy you have the more calories you lose
Other planets have more or less gravity than Earth, so the energy needed to move things around is also more or less.
We get heat energy whenever more than one molecules or atoms come into contact with each other.