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The block in given Figure is sliding down the inclined surface of a fixed wedge. This time the frictional force F exerted on the block is given by F = µN, where N is the normal reaction and µ is a positive constant.
Find the acceleration of the block. How do the cases µ < tan α and µ > tan α differ?
calculate the diameter of a medium carbon steel pin in double shear subjected to a suddenly applied shearing force of
A cylindrical cast-iron casting has an axial hole extending partway through the casting, as shown. Locate the center of gravity of the casting.
find the average velocity of flow at section B, and the pressure difference between sections A and B.
determine the number of discrete frequencies from the minimum to and including the maximum frequency that will appear
The tractor is about to tow the plane to the right. Is it possible for the driver to cause the front wheel of the plane to lift off the ground as he accelerates the tractor? Draw the free-body and kinetic diagrams and explain algebraically (letter..
An irreversible gas-turbine power plant has a compressor with an inlet state of 1 bar and 22°C and an outlet state of 4 bars and 470 K. The turbine has an inlet state of 4 bars and 1200 K and an exhaust state of 1 bar and 900 K. The environment is at..
consider an inertial reference frame with the center of the earth as its origin and with the x-y i-j plane in the
The water velocity at a certain point along a 1:10 scale model of a dam spillway is 3 m/s. What is the corresponding prototype velocity if the model and prototype operate in accordance with Froude number similarity?
consider a roof of a house of thickness l 20 cm thermal conductivity k 1 wm k and emittance of the external surface
imagine that the heart acts as a pump. blood enters the heart from the lungs at 6mm hg and leaves to the rest of the
A W18×71 steel beam supports a superimposed uniformly distributed load as shown. Calculate the maximum bending stress. Be sure to include the beam weight.
Assuming turbulent flow along the whole surface, estimate the wind speed and the drag force on the roof (from both upper and lower boundary layers).
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