0
What else can I help you with?
If the output work of a simple machine is than the input work the machine is said to have less than 100 percent efficiency?
input
The efficiency of an ideal machine is 100 percent. Do any machines used in your daily life in ideal Give reason to support your answer?
No physical machine is ideal. Friction is always a loss of energy.
Why is a high efficiency machine is more desirable than a low efficiency machine?
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).
Describe why a high-efficiency machine is more desirable thana low-efficiency machine?
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).
How is the efficiency of a compound machine calculated?
The efficiency of a compound machine is calculated by dividing the output work of the machine by the input work. Mathematically, it can be expressed as Efficiency = (Output work / Input work) * 100%. It gives a measure of how well the machine converts input work into useful output work.
What is the efficiency of a machine that loses 130 J of a 450 J work imput due to friction?
You have to divide the part that is NOT lost by the input work. This will give you a decimal between 0 and 1; if you want to convert it to percent, multiply this result by 100.
Why can't mechanical efficiency be over 100 percent?
The mechanical efficiency can't be over 100% because a type of energy is always lost. For example, it can be lost as heat, sound or even light. When you use a light bulb, it produces light, but heat is lost in the process. See what I mean! In most cases, heat is lost due to friction. the work put out by a machine is always less than the work put into a machine to do the work. Therefore no machine is 100% efficient. As well.... Efficiency is (power out/power in) x 100. To get an efficiency of *more* than 100%, the machine must give more power out than is put in. No machine has ever been demonstrated that does this, and until someone can show this result (power out *more* than power in), we know that any machine has an efficiency less than 100%.
Why can't a machine give 110 percent?
100% is the maximum of any closed system, therefore it cannot be exceeded.
What is the formula for efficiency of a machine?
useful energy output divided by total energy output x 100 give answer as a percentage, which is why you multiplied by 100
What is the efficiency is the output work is 12000 and the input work is 15000?
Efficiency as a percent is output/input * 100%12000/15000 * 100% = 80% efficiency which makes sense, because it takes more work (input) than it give out (output). So the efficiency should be less than 100%.
What is the efficiency of an engine that gives off 70 percent thermal enery?
If this, ie 70%, is the total energy loss, it follows that the engine is producing 30% useful energy, so that is its thermodynamic efficiency.
Is it ok to give a gerbill rootbeer?
no you cant. you also cant give a gerbil any type of soda.
