Ascientist compares two samples of colorless gas present at the beginning and end of a lab process. she wants to determine whether a chemical reaction has occurred. she tests whether each gas is flammable. neither has burns when lit. she then measures the amount of gas. sample one has a volume on 53 cubic cm and a mass of 0.10g. sample two has a volume of 39 cubic cm and a pass of 0.05g. what are the scientist's findings?

The cheetah is considered the fastest running animal in the world. cheetahs can accelerate to a speed of 20.1 m/s in 2.50 s and can continue to accelerate to reach a top speed of 28.1 m/s. assume the acceleration is constant until the top speed is reached and is zero thereafter.1) starting from a crouched position, how long does it take a cheetah to reach its top speed? (express your answer to three significant figures.) s2) how far does it travel in that time? (express your answer to three significant figures.) m3) if a cheetah sees a rabbit 120 m away, how long will it take to reach the rabbit, assuming the rabbit does not move? (express your answer to three significant figures.)