An object falls from a high building and hits the ground 11.5 Seconds later. Ignoring air resistance What is the hight of the building

2. they have negligible mass.

It won't lose or gain electrons if it's a covalent bond it shares the electrons with another atom or atoms. if it is an ionic bond it will lose the 3 electrons on the outer shell and become a positively charged ion.  credit goes to @sunshinebaby of answers.yahoo.com.

Idont understand the question

Wooden , walls ,doors ,support