The o–o bond length in oxygen gas is 1.20741 mc026-1.jpg 10–10 m. the atomic radius is exactly mc026-2.jpg of the o–o bond length. which is the atomic radius of oxygen, correctly written in scientific notation with the correct number of significant figures?

Sandy is building a small toy car. he wants to use a balloon to power the toy car. he fills a balloon with air and then attaches a straw to the balloon. he tapes the balloon-straw combination to the car and then releases the end of the balloon. the toy moves forward as the air from the balloon comes out the back of the straw. what can sandy do to make the toy car move faster? a) use less air in the balloon. b) blow up the balloon more. c) use a longer straw. d) use larger tires.