no machine has one
No, an efficiency greater than one would not be possible, since that would violate a very fundamental law of physics: conservation of energy. The efficiency of an "ideal machine" would be one, in many cases; the efficiency of an ideal Carnot engine would be less than one.
A high efficiency machine will produce more of what is it that you want with the same power as the low efficiency one. In other words, for a low efficiency machine do as much as a high efficiency one, you have to give it more power (energy).
ideal machines have mechanical efficeincy equal to 1 (100% efficient) since efficiency is the ratio of the power output to the power input
A high efficiency machine will produce more of what is it that you want with the same power as the low efficiency one. In other words, for a low efficiency machine do as much as a high efficiency one, you have to give it more power (energy).
The efficiency is always less than one because some of the energy is always useless for what you want. Most wasted energy eventually turns into heat. therefore the efficiency is like a percentage with 1 being 100% a device can't be 100% efficient as some energy is wasted. To work out the efficiency of a device you need to do the total useful energy produced divided by the total energy that is inputted into the device
Yes, that is correct. When the output force is less than the input force in a simple machine, the mechanical advantage is less than one. This means that the machine does not multiply the input force, but rather acts as a force multiplier, allowing the user to apply less force over a longer distance to achieve the same work.
100% efficiency would mean that the machine is able to transform energy from one form into another without any loss of energy from the system in the process. For it to have greater than 100% efficiency, it would have to somehow generate additional energy, not contained in the system, in the process, and this is not possible.
A multiple tape Turing machine has more than one tape, allowing it to perform multiple operations simultaneously. This gives it more computational power and efficiency compared to a single tape Turing machine, which can only perform one operation at a time.
It conducts for less than one half cycle of the input.
it means the mechanical advantage is greater.
it means the mechanical advantage is greater.
If you run the washing machine only when it is full, then it should use less water than washing it by hand. If you run the washing machine for one or two garments- you will be using more water than if washing it by hand.