The velocity of groundwater flow can be described by the following equation vi where i is the hydraulic gradient, given by h2-h and hi and h2 are the heads at locations 1 and 2 (head is a measure of total mechanical energy of a parcel of groundwater, and is measured in units of length) and l is the distance between the two locations. k is a property of the medium and water called the hydraulic conductivity (units of l/t), and n is a property of the medium called the porosity (dimensionless). how many feet will groundwater travel in one year given the following parameters? make sure your answer has the correct number of significant figures! h2(ft) 345.2 h1(ft) 344.5 l(ft) 915 k(m/d) 7.7 n 0.16