Spiderman is swinging back and forth in front of an office building window looking for the Green Goblin. At t= 2s, he is at one end of his swing 12 feet to the right of this window. At t=6s, he at the other end of his swing 12 feet to the left of the window. Let t =0 be the time he swings by a window where a worker notices him..Assume that the positive direction is to the right.

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.