A cardboard box that has been glued to the ground experiences pressures p1 = 0.35 psi and p2 = 1.25 psi on one side. The box has dimensions L1 = 19 in., L2 = 9 in., and h = 14 in. Use the pressure tributary to the diaphragm (lid) of the box to determine the reaction force V1 between the diaphragm and the shearwall (short side of the box).

Margins should be set at 1 inch all the way around for a newsletter.

As a woman walks, her entire weight is momentarily placed on one heel of her high-heeled shoes. Calculate the pressure exerted on the floor by the heel if it has an area of  1.50 cm^2 and the woman’s mass is 55.0 kg. 

A beam has dimensions of b = 18 in., h = 28 in., and d = 25.5 in. and is reinforced with 2 No. 7 bars. The concrete strength is 4,000 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the nominal moment capacity, Mn, of the beam.

A beam has dimensions of b = 14 in., h = 24 in., and d = 21.5 in. and is reinforced with 3 No. 6 bars. The concrete strength is 8,800 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the compressive stress block is a = 0.756303 in. and the strain in the reinforcement is εs = 0.052434, determine the strength φMn for this beam. Assume the transverse reinforcement is not spirals.

A large rocket has a mass of  2.00 X 10^6 kg at takeoff, and its engines produce a thrust of 3.50 X 10^7.  Find its initial acceleration if it takes off vertically.

A beam has dimensions of b = 14 in., h = 28 in., and d = 25.5 in. and is reinforced with 5 No. 8 bars. The concrete strength is 7,300 psi, and the yield strength of the reinforcement is 60,000 psi. Assuming the reinforcement has yielded, determine the depth to the neutral axis, c.

A beam has dimensions of b = 18 in., h = 22 in., and d = 19.5 in. and is reinforced with 3 No. 5 bars. The concrete strength is 8,800 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth to the neutral surface is c = 0.637598 in., determine the strain in the reinforcement.

A beam has dimensions of b = 14 in., h = 30 in., and d = 27.5 in. and is reinforced with 5 No. 8 bars. The concrete strength is 6,100 psi, and the yield strength of the reinforcement is 60,000 psi. Assuming the reinforcement has yielded, determine the tensile force T in the reinforcement.

Use the Simplified Alternative Procedure in ASCE 7-10 Chapter 12, Section 12.14 to answer this question. Assume that the building meets the limitations described therein. A two-story building with the following characteristics has a building frame system consisting of light-frame (wood) walls with wood structural panels rated for shear resistance. A certain shear wall in the building is 80 feet long by 24 feet tall and weighs 12 psf. Determine the seismic base shear, V, for the wall.Risk Category ISite Class CSS = 1.25, S1 = 0.75