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Batik work dates back to ancient times, with evidence of batik-dyed fabric found in Egypt and India as far back as 2,000 years ago. The technique of wax-resist dyeing used in batik is thought to have originated in Indonesia around the first century AD.

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1y ago

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What happens to internal energy when mechanical work is done?

When mechanical work is done, the internal energy of a system can change. If work is done on the system, the internal energy increases. Conversely, if work is done by the system, the internal energy decreases. This change in internal energy is governed by the first law of thermodynamics.


What is the relationship between mechanical energy and work?

Work is the quantity of energy being transfered (i.e. potential to kinetic). It is due to work that energy is transfered between potential and kinetic and vice versa. This is an attribute of the first law of thermodynamics. Energy is also the ability to do work


WHAT IS FORMULA TO CACULATE WORK DONE PER PERSON?

The formula to calculate work done per person is: Work done = Total work / Number of people. This formula divides the total work required to be done by the number of people doing the work to determine the work done per person.


How to calculate the work done by friction in a given system?

To calculate the work done by friction in a system, you can use the formula: Work Force of friction x Distance. First, determine the force of friction acting on the object. Then, multiply this force by the distance the object moves against the frictional force. This will give you the work done by friction in the system.


What is the work done by the system according to the sign convention?

The work done by the system is positive if the system does work on its surroundings, and negative if work is done on the system by the surroundings.