The john Hancock center in Chicago is the tallest building in the united states in which there are residential apartments. The Hancock center is 343 m tall. If a resident accidentally causes a chunk of ice to fall from the roof, how fast would the ice be moving when it hits the ground? Neglect the air resistance

What happens when a rubber rod is rubbed with a piece of fur?

How do you know how many valence electrons an atom has?

Which phrase describes the paleo-indians of prehistoric arkansas? a. grew cornb. lived in cliff dwellings c. crafted beautiful potteryd. hunted with stone-tipped spearswhich phrase describes native arkansas from the woodland traditiona. developed widespread agricultureb. hunted mastodon and woolly mammothc. built rectangle-shaped homesd. traded salt with other groups