A hill that has a 17.5% grade is one that rises 17.5 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal?

3 answers

tan^-1 0.175 = 9.93 degrees
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A gallon of water sample occupies a volume of 3.785 times 10-3. The mass of the water sample is 3.785 kg. What is the density of water in kg/m^3 ?