The circumference of the circle in the above figure is 128 ft. what is the length of ab? a. 16 ft b. 105.5 ft c. 22.5 ft d. 45 ft

Acontinental polar air mass foms in

Ascientist is explaining how background cosmic radiation gives evidence of the big bang theory. she says that radiation has been detected everywhere equally as heat in the universe and is increasing. this has been shown to be residual radiation from the big bang. what error did the scientist make?

Which of the following countries was not an ally to the u. s.s. r. during the cold war? west germany poland romania cuba