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Friction changes the useful work of a machine into mechanical energy true or false?
true
What is true about machines in the real world?
In the real world, machines are never 100% efficient. There is always loss of energy, usually due to friction. By contrast, in physics problems, an "ideal machine" is a hypothetical device which is perfectly efficient. The assumption of perfect efficiency allows the problem to focus on the fundamental mechanical principles.
Air resistance is a type of friction?
Yes, it is a type called fluid friction.
Is Friction is always undesirable true or false?
No You need friction to Walk, So the Answer Is False
Lubricants do what to friction by replacing sliding friction with fluid friction?
the correction option is true :)
Friction changes the useful work of a machine into mechanical energy true or false?
true
Friction always makes the effiency of a machine less than 100 true or false?
True.
What is true transformation efficiency?
True transformation efficiency is the transformation efficiency at the saturation point, or essentially the highest transformation efficiency that can be attained.
What is true about machines in the real world?
In the real world, machines are never 100% efficient. There is always loss of energy, usually due to friction. By contrast, in physics problems, an "ideal machine" is a hypothetical device which is perfectly efficient. The assumption of perfect efficiency allows the problem to focus on the fundamental mechanical principles.
Air resistance is a type of friction?
Yes, it is a type called fluid friction.
Is Friction is always undesirable true or false?
No You need friction to Walk, So the Answer Is False
Is it true that thermal efficiency of a diesel engine equals indicated thermal efficiency - brake thermal efficiency?
no
Lubricants do what to friction by replacing sliding friction with fluid friction?
the correction option is true :)
Is this statement true or false Air can cause friction?
true
What is Lubricants blank friction by replacing sliding friction with fluid friction?
reduce shelbyjohnson
Is the true efficiency in a heat pump greater or smaller then the efficiency based on the motor?
It is greater. You need to look for the SEER (Seasonal Engergy Efficiency Rating) to see the true engergy rating of the heat pump.
Is it true that friction doesn't convert energy and that friction actually destroys energy?
false
