0
Add your answer:
Earn +20 pts
Why can't the efficiency of a device or a process be greater than 100?
Efficiency cannot be greater than 100% because efficiency measures energy, and since energy is not made, only transfered (conservation of energy) then we cannot gain energy. Hence the energy out must be at most the energy in. Thus efficiency can be at most 100%
Why can't a pulley have a mechanical advantage greater than 1?
The mechanical advantage of a pulley can be greater than 1.The efficiency cannot but that is a different matter.
Are -14 and -23 negative integers prove your answer?
9
Is it possible to design a machine that has an efficiency that is greater than 100 percent yes or no?
No. That would violate Conservation of Energy, so it follows that it isn't possible.
What statement do you need to prove is a rectangle?
The length of a rectangle is greater than its width and it has 2 pairs of parallel sides with 4 interior right angles.
Does an ideal machine would have an efficiency greater than one?
No, an ideal machine would not have an efficiency greater than one. Efficiency is calculated as output divided by input, and it represents how well a machine converts input energy into useful work. An efficiency greater than one would imply that the machine produces more output energy than the input energy, which violates the conservation of energy principle.
Why efficiency of generator is greater than motor?
i think both will be same..
Why can't the efficiency of a device or a process be greater than 100?
Efficiency cannot be greater than 100% because efficiency measures energy, and since energy is not made, only transfered (conservation of energy) then we cannot gain energy. Hence the energy out must be at most the energy in. Thus efficiency can be at most 100%
Why efficiency is greater then 1 in case of compound lever?
why efficency is greater than 1 in case of compound lever
Can a machine's efficiency can be greater than 100 percent?
nope, efficiency o fa machine cannot be greater than 100%...theoretically it shows sometime that efficiency of a machine can be 100%, but practically it cannot be possible as there is some loss of energy is always involved in different ways.
Why can't a pulley have a mechanical advantage greater than 1?
The mechanical advantage of a pulley can be greater than 1.The efficiency cannot but that is a different matter.
Why do levers have a greater mechanical efficiency than simple machines?
The transmission lever is very simple and there is no friction.
How do you prove that ten is a composite number?
All even numbers greater than 2 are composite.
Are -14 and -23 negative integers prove your answer?
9
Why efficiency of carnot heat engine is always greater than that of an actual engine?
The efficiency of a Carnot engine is theoretically always greater than that of an actual engine. The fact that it is impossible to build a thermodynamically reversable engine, which is one of the variables necessary to calculate its superiority to a real heat engine, makes the theorum practical for assessing a real heat engines efficiency only.
Is a machine physically possible that has an efficiency greater than 100 percent?
Not if the laws of physics - specifically thermodynamics - are correct.
Is a ideal machine has an efficiency of less than one equal to one greater than one?
ideal machines have mechanical efficeincy equal to 1 (100% efficient) since efficiency is the ratio of the power output to the power input
