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What is a median in math?

What is a median in math? The median is the middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set than the average. Median is the middle number in a sorted list of numbers. To determine the median value in a sequence of numbers, the numbers must first be sorted, or arranged, in value order from lowest to highest or highest to lowest. If there is an odd amount of numbers, the median value is the number that is in the middle, with the same amount of numbers below and above. If there is an even amount of numbers in the list, the middle pair must be determined, added together, and divided by two to find the median value. The median is sometimes used as opposed to the mean when there are outliers in the sequence that might skew the average of the values.  You may like What is manifesting? What is electric Charge? What is Binary? What is physics? What is pH scale? What is quantum mechanics?

Work

Work


What is work?

If because force-displacement happens then the product of force and component of displacement at the direction of force due to force is work.

Work is the product of applied force on a body and its displacement along the direction of a force.

Unit of work: J (Joule)

Dimension of work, [W] = ML2T-2

What is Joule?

If due to the appliance of one-newton force at the direction of force the application point of force moves 1 meter then it is 1 joule of work.


What is positive work?

If due to force the application point of force moves along the direction of force or the component of displacement is towards the direction of force then it is said to be work done by force or positive work.

What is negative work?

If due to force the application point of force moves in the opposite direction of force or the component of displacement is at the opposite direction of force then it is said to be work done on force or negative work. 

What do you mean by the work 50 J?

The work measuring 50 J means 50 m of displacement of a body towards the direction of a force measuring 1 N. It further means 1 m of displacement of the body toward the direction of a force measuring 50 N.


Secondary Physics


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