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Air at 40C flows over a 2m long flat plate with a free stream velocity of 7 m/s. Assume the width of the plate (into the paper) is 0.5m. If the plate is at constant temperature of 100C, find:
1) The total heat transfer rate from the plate to the air.
2) The local heat flux at the midpoint of the plate's length.
An electric locomotive together with its train has a mass of 200 tonne. The average tractive resistance to motion is 55 N/tonne while starting from rest up a gradient of 1 in 100. Calculate time taken to travel the first 1 km if the average tractive ..
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