0
What is the mechanical efficiency of a machine that produce 400 joules of work output from a work input of 500 joules?
Wiki User
∙ 9y ago
The efficiency is 80%.
To find the efficiency, 400/500 = 80%.
Wiki User
∙ 9y ago
Wiki User
∙ 11y ago400/500 = 80%
Add your answer:
Earn +20 pts
The amount of work done in a certain amount of time?
The amount of work done in a certain amount of time is the power.Power is measured in watts, and is defined as joules per second. Work is a mechanical form of energy. Dimensionally, it is Force*Distance. Typical units are ft-lb or watt-seconds. Power is the rate of work, dimensionally Force*Distance/Time. Typical units could be ft-lb/hour, or watt.
What does MBh mean in air conditioning terms?
MBh stands for One Thousand BTU per hour. BTU stands for British Thermal Unit. MBh units should help with the cost estimate of running your air conditioning (AC). It's a measure of the heating/cooling capacity of AC equipment.MBH - One MBH is equivalent to 1,000 BTU's per hour. The 'M' is derived from the Roman Numeral M that equals 1000. Such as MMIX = 2009.(This M is often confused with the SI (Système International) 'M' which stands for the prefix Mega, equal to One Million (1,000,000). Note BTUs and therefore MBH are Imperial Units.)BTU - A standard unit of measurement used to denote both the amount of heat energy in fuels and the ability of appliances and air conditioning systems to produce heating or cooling. It is is the amount of heat required to increase the temperature of a pint of water by one degree Fahrenheit. BTUs are measurements of energy consumption, and can be converted directly to kilowatt-hours (3412 BTUs = 1 kWh) or joules (1 BTU = 1,055.06 joules). A wooden match produce approximately 1 BTU.
What is the formula to calculate heat energy if resistance known?
J (Joules) = Kg (Mass) x Specific Heat (Sometimes C, which is calories, but most times specific heat which is q) x Delta T (Change in temperature). J = m*q*▲T
What is the mechanical efficiency of a machine that produces 400 joules of work output from work input of 500 joules?
The efficiency is 80%. To find the efficiency, 400/500 = 80%.
What is the mechanical efficiency of a machine that produces 400 jouls of work output from a work input of 500 joules?
The efficiency is 80%. To find the efficiency, 400/500 = 80%.
What is the machine efficiency of a machine that produces 400 joules of work output from a work input of 500 joules?
The efficiency is 80%. To find the efficiency, 400/500 = 80%.
What is the efficiency of a machine that requires 100 joules of input energy to do 35 joules of useful work?
The machine efficiency is 35 percent (35/100).
Find the efficiency of a machine that does 800 joules of work if the input work is 2400 joules?
.33
What is the application of rational algebraic expression in real life situation?
Manufacturing. A machine has a work output of 14ax4 j (joules) and a work in put 7a2x5 j. What is the eficiency of the machine? efficiency in % = work output in joules work input in joules
What is efficiency measured in?
Efficiency is measured in joules.
A machine requires a work input of 180-joules to achieve a work output of 140-joules. What is the efficiency of the machine?
94 percent (which is easily calculated, 3760/4000x100).
What is the efficiency of a pulley system when its work out equals 100 joules and its work in equals 150 joules?
If the input energy is 210 joules and the efficiency of the system is 30%,then the output energy is30% of 210 = (0.3 x 210) = 63 joules.
What does efficiency tell you about a machine?
The efficiency of a machine tells you how much usefull energy it will put out compared to the amount of energy that's put in. The usefull output energy is usually less (never greater) then the input because of energy loss due to frictional heating. For example if 120 joules of energy or work is put into a lifting machine, you might only get out 110 joules of lifting work because 10 joules is lost to heat. The efficiency of the machine is then ; (110/120) x 100% = 91.7% . I think for most practical machines anything above 90% efficient is quite good. (The terms work & energy are used interchangebly here because work is a transfer of energy).
What is mechanical energy measured in?
Joules
What is the mechanical advantage of using machines?
Mechanical advantage is the ratio of output force to input force. In other words, F out/F in. Output force is the work done by the machine while input force is what the host (you) did to the machine. Work is always displayed with the label of joules.
