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Positive work is input energy, w= -f.d - |fd|cos(fd) , when this is positive energy is put into the system, in this case the force is in the opposite direction of the displacement. Negative work is output energy properly called exergy, w = -f.d, in this case the force is in the direction of the displacement, for example, dropping a ball is exergy, the displacement is in the direction of the force of gravity. This is exergy, work is taken out of the system as opposed to lifting the ball which required putting work into the system.
Maxwell had a problem with quaternions because physicists defined positive work as dropping the ball, and the rules of quaternions said dropping the ball is a negative sign and thus exergy, work out, not work in. Around the 1900 this was a major conflict and the physicist won and decided to change the sign on vectors squared , I2 = -1 to +1, so dropping the ball would be positive energy.
This is incorrect physics and incorrect mathematics. The sign of the scalar work is negative for work out and positive for work in. This is seen in opposites attract, you get work out and the sign is negative. For like charges the sign is positive and you have to put work in.
What else can I help you with?
What molecule has a positive end and negative end?
A zwitterion, if you mean formal charges. If you just mean relatively positive and negative, then a polar molecule.
Is free energy of cell reaction positive when emf of cell reaction is positive?
No, the free energy of a cell reaction is negative when the emf of the cell reaction is positive. This is because a positive emf indicates that the reaction is spontaneous and capable of performing work, resulting in a negative change in free energy.
Does a negative amd a positive make a negative?
Yes, when you multiply a negative number by a positive number, the result is negative.
What is total positive charges and negative are equal?
When the total positive charges are equal to the total negative charges in an atom or a molecule, the overall charge is neutral. This means that the number of protons (positive charges) is equal to the number of electrons (negative charges), resulting in a balanced electrical charge.
What does it mean when you have a positive ion and a negative regarding electrons?
A positive ion has lost electrons, resulting in a net positive charge, while a negative ion has gained electrons, resulting in a net negative charge. Positive ions are called cations and negative ions are called anions.
When work is positive and when is negative?
when work is positive and when playing is negative
Can work positive or Negative in physics how?
Yes Work can be positive or Negative.
Should positive go to positive in a circuit?
No, this will not work. Postitive to Negative/Negative to Positive will work.
What are positive and negative work ethics?
what is positive and negative
What does negative answer mean?
its negative! negative reply, answer that is not positive
Do withdrew mean positive or negative?
positive
When swimming work done is positive or negative?
Positive.
Can the sample mean in statistics be either positive or negative?
It can have either a negative or positive trend
How do you determine a work done is positive sign or negative sign?
If work is done on the system then it has a negative sign. If work is done by the system then it has a positive sign.
What is a negative mean?
IN statistics yes there is a negative mean. Mean is the average of multiple numbers. Negative is opposite of positive.
Does air friction do positive negative or zero work on your car when you are coasting?
negative work
Is a negative a positive is what?
A Negative plus a positive = a negative because negative and a positive cannot work together Negative + Negative= Positive Positive + Positive = Positive when your dealing with numbers such as : -2 + 2 would equal a negative 4 -2 +-2 would equal a positive 4
