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What is a quantity usually expressed as a percentage the measure the ratio of work output to work Input?
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Is size a quantity?
Size is usually how large. Quantity is how many.
The efficiency of machines is usually expressed in?
Efficiency is expressed as a factor, like 0.9, or a percentage - the above is equivalent to 90%. An efficiency of 90% means that 90% of the input energy (or a factor of 0.9) is converted into whatever you want to convert it to; the remainder is wasted.
Can you correctly describe speed?
Speed is a measure of how quickly an object covers a certain distance. It is defined as the distance traveled divided by the time taken to travel that distance. Speed is a scalar quantity and is usually expressed in units such as meters per second or miles per hour.
What is the abbreviation 1W?
In electronics, a capital W is the abbreviation for Watt. A Watt is a unit of electrical power. A quantity of electrical power is usually expressed as the amount of Watts consumed over a period of time. For example: kWH (kilowatt per hour)
What is calorific value?
The calories or thermal units contained in one unit of a substance and released when the substance is burned. and in (Mathematics & Measurements / Units) The quantity of heat produced by the complete combustion of a given mass of a fuel, usually expressed in joules per kilogram.
Is relative humidity expressed as a fraction?
It is expressed as a percentage (fraction of 100%).
How is efficency expressed?
Usually as a percentage. 80% efficient, for example.
What does percentage mean?
In mathematics, a percentage is a way of expressing a number as a fraction of 100 (per cent meaning "per hundred". It is often denoted using the percent sign, "%". For example, 45% (read as "forty five percent" is equal to 45 / 100, or 0.45. Percentages are used to express how large one quantity is relative to another quantity. The first quantity usually represents a part of, or a change in, the second quantity. For example, an increase of $ 0.15 on a price of $ 2.50 is an increase by a fraction of 0.15 / 2.50 = 0.06. Expressed as a percentage, this is therefore a 6% increase. Although percentages are usually used to express numbers between zero and one, any dimensionless proportionality can be expressed as a percentage. For instance, 111% is 1.11 and −0.35% is −0.0035.
A blank is a measure of energy in food?
The calorie (usually expressed in kilocalories)
In scientific experiments what is the liquid measure expressed in?
It is usually measured in liters/milliliters
Is the difference between the price of a good and the cost to make the good on a per product basis and it is usually expressed as a percentage?
_____ is the difference between the price of a good and the cost to make the good, on a per product basis; and, it is usually expressed as a percentage.
What is the ration of work output to work input and is usually expressed as a percent?
Assuming that you mean ratio, and not ration, it is a measure of the efficiency. It has a value between 0 and 1 and a percentage is a convenient way to represent such values.
Efficiency can be express mathematically as?
Efficiency = Output/Input. This is usually expressed as a percentage but may be given in the form of a ratio.Another AnswerEfficiency is output power divided by input power, normally expressed as a percentage.
What physical quantity?
a physical quantity is either within physics that can be measured (eg:mass,volume) or the result of a measurement.a physical quantity is usually expressed as the product of numerical value and a physical unit.by sukhpreet 9th a d.p.s faridkot
What is percent used for?
In mathematics, a percentage is a way of expressing a number as a fraction of 100 (per cent meaning "per hundred" in Latin). It is often denoted using the percent sign, "%", or the abbreviationPercentages are used to express how large/small one quantity is, relative to another quantity. The first quantity usually represents a part of, or a change in, the second quantity, which should be greater than zero. For example, an increase of $ 0.15 on a price of $ 2.50 is an increase by a fraction of 0.15/2.50 = 0.06. Expressed as a percentage, this is therefore a 6% increase
The efficiency of a machine is usually expressed in?
The efficiency of a machine is usually expressed as a percentage. The ideal efficiency of a machine is 100-percent.Another AnswerThere are no units of measurement for efficiency, because you are comparing like with like: output power divided by input power.
Which would best measure the mass of a pair of glasses?
That would usually be expressed in grams.
