How much potassium nitrate, KNO3, would completely dissolve in 100g of water at 40℃? A. 28 grams
B. 108 grams
C. 45 grams
D. 65 grams

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?