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Determine the smallest force the man must exert on the rope in order to move the crate of mass M. Also, what is the angle ? at this moment? The coefficient of static friction between the crate and the floor is µs.
Given:
M = 80 kg
µ s = 0.3
a = 30 deg
ß = 45 deg
g = 9.81m/s2
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Atmospheric air at 10°C enters the exchanger with a volumetric flow rate of 1.0 m3/s. The convective heat transfer coefficient on the tube outer surfaces is 400 W/m2·K. Estimate the fluid outlet temperatures.
Describe at least three ways in which digitization has changed the manner in which society consumes information.
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