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Conductor (wall) losses. A rectangular waveguide is made of aluminum, which has conductivity of 3.6 x 107 S/m. The walls of the waveguide are thick and the internal dimensions are a = 25.4 mm and b = 38.1 mm. Assuming the waveguide is empty (free space), calculate:
(a) The power loss per meter length in the TE01 mode at f'fc = 2. Assume the amplitude of the longitudinal magnetic field intensity is 1 Aim.
(b) The attenuation constant due to losses in the walls.
a knoop microhardness measurement was made on a sample that resulted in a khn of 481when a load of 5120 kg was applied.
Explain what you believe is the procedure to calculate each variable. Also, explain what each of the above variables means - Calculate the acceleration a of the centre of the wheel. First prove that the wheel slips.
a 12-mm diameter jet of water discharges vertically into the atmosphere. due to surface tension the pressure inside the
givenpiston mass 324 gramsbore diameter 80 mmstroke 88 mmconnecting rod length 136 mmmass of intake valve 47
an aluminum alloy specimen of .562 diameter and 2gauge length was subjected to loads p resulting in gauge lengths l as
A hollow cylinder steel column of 5 m high is shortens by 0.03 cm under a compression load of 40, 000 kg. If the inner radius of the cylinder is 0.08 of the outer one, what is the outer radius?
For flow of viscous fluids through a 5 cm diameter pipe, for what flow rate in m3/h would we expect transition to turbulence?
a flat isothermal heating panel 0.5 m wide by 0.8 m high is mounted to one wall of a large room. the surface of the
(a) How many atoms are there per unit cell (atoms actually inside the unit cube)? (b) Make a sketch (as best you can) of the lattice characterized by the part (a) unit cell. Use dots to represent the atoms and include at least three parallel plancs o..
Modify the analysis of Fig to find the velocity v? when the inner cylinder is fixed and the outer cylinder rotates at angular velocity O0. May this solution be added to Eq. (4.146) to represent the flow caused when both inner and outer cylinders r..
Determine the percent error n in replacing the sine and the tangent of an angle by the value of the angle in radians for angle values 5 degrees, 10 degrees, and 20 degrees. Explain the qualitative difference between the sine and tangent results.
a simply supported nonmetallic beam of 0.25-m height 0.1-m width and 1.5-m span is subjected to a uniform loading of 6
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