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A laser is directed at a double-slit arrangement. If we increase the wavelength of the light, which of the following will occur to the pattern on a distant screen? -The spacing between the interference fringes will decrease, but the width of the overall diffraction envelope will increase. -The spacing between the interference fringes will increase, but the width of the overall diffraction envelope will decrease. -Both the spacing between the interference fringes and the width of the overall diffraction envelope will increase.
A hemispherical dome is filled with water. The dome arrangement weighs 28kN and is fastened to the floor by bolts equally spaced
the 2 Mg car increases its speed uniformly from rest to 25 m/s in 30s up the inclined road. determine the maximum power that must be supplied by the engine, which operates with an efficiency of 0.8. also, find the average power supplied by the eng..
the inner and outer surface temperatures of a glass window 5 mm thick are 15degc and 5degc. what is the heat loss
The bending moment M at position x m from the end of a simply supported beam of lenght L m carrying a uniformy distributed load of w Kn m-1 is given by
a 60-lb uniform thin panel is placed in a truck with end a resting on a rough horizontal surface and end b supported by
in moving from point b in a particular circuit to point a an electron gains 4 aj of potential energy. what is the
A short post AB has a commercially manufactured eyebolt screwed into its end. Three cables attahced to the eyebolt apply forces shown.
a piston-cylinder device initially contains 1.4 kg of refrigent-134a at 140 kpa and 20 degc. heat is now transferred to
Determine the coordinates x' and y' of the centroid C of the area shown in the figure and calculate the moments of inertia of the area shown, about ox and oy axes.
A mass of 2.5kg are hung vertically from a spring of stifness 5.4kN/m, calculate the maximum amplitude of vibration if the mass is not to jump off the hook.
A triangular field with vertices OPQ has sides OP equal 402 m, PQ equal 388 m, and QO equal 254 m . find perpendicular distance from the vertex P to the opposite side.
a 75-lb stoplight is suspended between two poles as shown in fignbspp3-27. neglect the weight of the flexible cables
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