Engineering, 26.11.2019 06:31 debbys4153
Consider a block of mass m that is initially at rest on an inclined plane at an angle β from the horizontal. the block is acted on by an applied force f(t) directed up the plane. the plane is lubricated with a viscous oil of effective damping constant b. the applied force is a 400 n step applied at t = 0. if m = 80 kg, b = 12 n*s/m, and β = 20°, do the following:
a. calculate (analytically) the steady-state speed of the block.
b. find (analytically) the time constant of the system.
c. calculate (analytically) approximately how long it takes for the block to reach its steadystate speed.
d. write an analytical expression for the speed as a function of time
Answers: 2
Engineering, 04.07.2019 18:10
Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux
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Engineering, 04.07.2019 19:10
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Engineering, 04.07.2019 19:20
Determine (a) the maximum thermal efficiency of reversible power cycles operating between a hot reservoir at 1000°c and a cold reservoir at 200°c and (b) the maximum cops for reversible refrigeration and heat pump cycies, respectively, between 28°c and 14°c.
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Engineering, 06.07.2019 03:20
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Consider a block of mass m that is initially at rest on an inclined plane at an angle β from the hor...
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