If sin(0) = –4/5, and 0 is in Quadrant III, then what is sin(0/2)?

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

Order the measurements from the least to the greatest. 2,720 ml , 24.91 l , 0.0268 kl

In an improper fraction, is the numerator equal to, less than, or greater than the denominator