Jeremy throws his ball up in the air, but the ball falls back to the ground. what force made the ball move without ever touching the ball?

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

How far is the region from the equator or control climate

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?