Don't know but I believe the following is consistent with the history and development of thermodynamics. Thermodynamics first tackled analysis of a "heat engine" which, at the time, essentially meant a steam engine. By convention, an engine produced a work output which logically was positive (it would be poor marketing to sell a negative 1000 kw engine). The fuel used was positive - more acurately, the fuel produced by burning the fuel put positive heat into the engine. Again, by convention, heat in is positive and work out is positive. Note that heat coming out would be heat taken away ... subtracting heat or negative heat. So why does compressing a gas involve negative work? Gas expansion is the basic positive work producing process for heat engines and, since 1) compression is the opposite of expansion and 2) the total work needed to reversibly compress and expand a gas (back to the initial condition) is zero, then Work compression + Workexpansion = 0 so they better have opposite signs. The idea of work in and work out is closely tied to the idea of control volume. TSM
Positive values : 1, 2, 3, 4, 5 Positive is a plus. Negative values:-1,-2,-3,-4,-5 Negative is minus.
The plus values become negative and the negative values become positive although their numerical values remain the same
Yes.
Yes
[ -2n ] is positive for all negative values of 'n' .
What is the significance of negative values of voltage and current?Negative values show direction and that is the significance
Positive values : 1, 2, 3, 4, 5 Positive is a plus. Negative values:-1,-2,-3,-4,-5 Negative is minus.
The top right one... it is the first because it is where both the x-value and y-values are positive. The second quadrant is the top left. The x-values are negative and the y-values are postive. The third quadrant is the bottom left. The x-values are negative and the y-values are negative. The fourth quadrant is the bottom right. The x-values are positive and the y-values are negative.
If you subtract a negative from a positive, add both of their absolute values. If you subtract a positive from a negative, add both of their absolute values and multiply by negative one.
... negative.... negative.... negative.... negative.
No. Probability values always have to be positive.
They are, when appropriate.
The plus values become negative and the negative values become positive although their numerical values remain the same
Plant cells are not known to have negative turgor pressure values. However, there are times when plants will have low turgor pressures which may result into negative turgor pressure values.
Yes.
-x is a negative unknown or a negative variable.
how can young people like you help in the improvement of negative filipino values