Write 939,800 in scientific notation.

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

What methods could you use to solubilize calcium carbonate