(11%) Problem 7: A barge floating in fresh water (0 = 1000 kg/m') is shaped like a hollow rectangular prism with base area A = 450 m" and height H = 2.0 m. When empty the bottom of the barge is located Ho = 0.55 m below the surface of the water. When fully loaded with coal the bottom of the barge is located H/ A = 145 m below the surface. H Ho count D A 50% Part (a) Find the mass of the coal in kilograms. Grade Summary MJ= Deductions Potential 100% sin( cos() tan() JT 7 8 9 HOME Submissions Attempts remaining: 5 cotan() asinC acos() E 5 6 (4 Se per attempt) atan( acotan( sinh( 2 3 detailed view cosh() tanh() cotanh() + END O Degrees O Radians VO BACKSPACT CLEAR Submit Hint Feedtinchy Hints: 1% deduction per hint. Hints remaining: 3 Feedback: 2% deduction per feedback. A 50% Part (b) How far would the barge be submerged (in meters) if my = 350000 kg of coal had been placed on the empty barge