The presence of the radioactive gas radon (rn) in well wa- ter presents a possible health hazard in parts of the united states. (a) assuming that the solubility of radon in water with 1 atm pressure of the gas over the water at 30 °c is 7.27 * 10-3 m, what is the henry’s law constant for radon a sample consisting of various gases contains 3.5 * 10-6 mole fraction of radon. this gas at a total pressure of 32 atm is shaken with water at 30 °c. calculate the molar concentration of radon in the water.

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.)