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A supervisor is sitting at her desk illuminated by a 180 candela source 3 feet above it. She is writing with green ink (reflectance=30%) on a yellow note pad (reflectance=60%). What is theillumination on the note pad?
Is that sufficient?
If not, what amount of illumination is need?
Whatis the contrast of the writing task? What is the luminance of the notepad
the inclined leg differential manometer as shown in figure 1 below shows a reading along the inclined leg mercury
In thermal expansion is a tendencyof a material to increase in size as it increase intemperature. Where the young modulusdescribes tesile elasticity. or the tendecy
Investigate the possibility of environmental problems that faced by the area of disaster.
Use dimensional analysis with the following parameters: height of spillway (P), head on the spillway (H), viscosity of liquid, density of liquid, surface tension, and acceleration due to gravity.
A point charge of -2.00μC is locatedin the center of a spherical cavity of radius 6.51cm inside aninsulating spherical charged solid. The charge density in the solid7.34*10^-4 C/m^3.
Use the chord definition to compute the curve parameters L, T, E, M, LC, R, and stations of the PC and PT for the railroad curve with DC = 2deg0'00', I=18deg,0'00' and PI station =25+50.00ft
However, design codes which deal with shear friction design place an upper limit on the magnitude of the shear force for which the plane can be designed. Explain why this is so.
A 2.25 Adisk spins within an oil-filled enclosure,having 2.4-mm clearance from flatsurfaces each side of the disk. The disk surface extends from radius 12 to 86 mm.What torque is required to drive the disk at 660 rpm if the oil's absoluteviscosity is..
A proposed combined cycle power plant is shown below. A gas turbine engine, the topping cycle, takes air at state 1 (T=300 K, P=100 kPa) and compress it irreversibly (hc=0.87) to state 2.
Discuss the advantages and disadvantages of using 8-bit and 10-bit resolution for the analog-to-digital converter.
A proposed square footing carrying a total load of 500 kips is to be constructed on a uniform thick deposit of dense cohesionless soil. The soil's unit weight is 135 pcf, and its angle of internal friction is 38 degrees.
The coefficient ofrestitution between each car is 0.8 . Determine the final velocityof each car, after all impacts, assuming (a) cars A and C hit Car Bat the same time, (b) car A hits car B before car C does.
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