Element analysis of X shows that the mass precent composition of the compound is 26.86% C and 2.239% H, with the remainder being oxygen

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

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit