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A Rockwell A test was conducted on a material and a penetration depth of 0.15 mm was recorded. What is the hardness of the material? What material would typically have such a hardness value? If a Brinell hardness test were to be conducted on this material, give an estimate of the indentation diameter if the load used was 1500 kg.
A 6-lane freeway horiz. alignment has a 1200’ C.L. radius going into a tangent and then a reversing 1800’ radius. How much tangent distance between the two curves is needed to meet the superelevation runoff requirements?
A particle with a mass of 0.5 kg has a velocity of 10 m/s in the x-direction at time t = 0. Forces F1 and F2 act on the particle, and their magnitudes change with time according to the graphical force-time history shown.
A short concrete column is being used to support the roof over a pedestrian walkway. The unbraced column length is 9 feet and supports a dead load of 12 kips and a live load of 20kips.
A truck is traveling down a road with a 3-percent grade at a speed of 55 mi/h when the brakes are applied. Knowing the coefficients of friction between the load and the flatbed trailer (us= 0.40) and (uk= 0.35)
radioactive wastes are stored in a spherical type 316 stainless steel tank kss 13 wmk of inner diameter 1 m and 1 cm
The vertical deflection in a simply supported beam follows the following equation: v = -[(w_0*x)/(360LEI)](7L^4 - 10*L^2*x^2 + 3*x^4) What is the equation for the applied load w(x)
Two new rides are being compared by a local amusement park in terms of their annual operating costs. The two rides are assumed to be able to generate the same level of revenue (and thus the focus on costs).
For each of the following transitions, draw E2,y2 on the specific energy chart and fully describe the reasoning. a. In a rectangular channel, there is a sudden drop in the channel bottom. Did the water depth increase or decrease
A single metallic crystal is oriented such that the normal to the slip plane and the slip directions are at angles of 50 and 40 degrees respectively, with the tensile axis
Outdoor air enters an air-conditioning system at 10°C and 40 percent relative humidity at a steady rate of 22m3/min, and it leaves at 25°C and 55 percent relative humidity
A dairy that processes about 250,000 lb of milk daily produces an average of 65,100 gpd of wastewater with a BOD of 1400 mg/L. The principal opearations are bottling milk and maing ice cream with limited produciton of cottage cheese. What is the was..
Use specific heat values at room temperature, and assume the room to be at 100 kPa and 15°C in the morning when she leaves.
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