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.

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reserve is the answer

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

there are no contact forces mentioned on the list of choices that you've provided.