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Large, cylindrical bales of hay used to feed livestock in the winter months are D=2m in diameter and are stored end-to-end in long rows. Microbial energy generation occurs in the hay and can be excessive if the farmer bales the hay in a too-wet condition. Assuming the thermal conductivity of baled hay to be k=0.04W/m*K, determine the maximum steady-state hay temperature for dry hay (q,dot = 1W/m^3), moist hay (q,dot= 10W/m^3), and wet hay (q,dot= 100W/m^3). Ambient conditions are T inf =0 C and h = 25 W/m^2*K. Identify where the maximum temp is. Compute this temperature for the wet and dry hay.
a compressor operating adiabatically is to compress 2.83 m3min of air at 29.4 c and 102.7 knm2 to 311.6 knm2. calculate
problem 1explain the role of the fiber-matrix interface strength in the fracture toughness of fiberreinforced ceramic
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An airplane flies at 400 mph at 1600 ft altitude on a standard day. The plane climbs to 50,000 ft and flies at 725 mph. Calculate the Mach number of flight in both cases.
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a 517-kg cannon fires a 16.5-kg projectile with a speed of 265 ms with respect to the muzzle. the cannon is on wheels
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