An acorn at rest falls from an oak tree. The acorn hits the ground with a velocity of 29 m/s. How long did it take the acorn to land? Remember
g=9.8m/s2. DO NOT round numbers. Include units in your answer otherwise it
will be marked wrong.
Whoever answers this question will be the brainliest!!

vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.

it's c. elements are placed in rows based on how may valencies electrons have.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error