Assume that the mud ends up uniformly distributed over a surface area of the valley measuring 1.0 km x 1.0 km and that the mass of a cubic meter of mud is 1900 kg. what is the mass of the mud sitting above a 3.6 m2 area of the valley floor? number enter your answer in accordance to the question statement units choose the answer from the menu in accordance to the question statement the tolerance is +/-2%