net cell voltage = (reduction potential reaction at cathode)…
net cell voltage = (reduction potential reaction at cathode) – (reduction potential reaction at anode) Q = I x t = n x F mass = moles x molar mass F = 96485 C/mol e- surface area = length x width volume = length x width x depth a) compare the corrosion of iron with the corrosion of copper. b) Describe and compare the following three methods of corrosion prevention i) painting ii) electroplating iii) using a sacrificial anode
Read DetailsA wall footing has the following conditions. Determine the m…
A wall footing has the following conditions. Determine the minimum cross-sectional area of the reinforcement. Assume the footing is 5 ft wide and the pressure that acts on the bottom of the footing is 6,160 psf.The bottom of the footing is at a depth of 2 ft below grade.The service dead load is 15 kips/ft, and the service live load is 8 kips/ft.The wall is 14 in. thick.The footing is 16 in. thick.The allowable soil pressure, qa, is 4,900 psf.The soil has a density of 110 lb/ft3.The concrete has a density of 150 lb/ft3.The concrete cover has a thickness of 3 in.f’c = 3,000 psi and fy = 60,000 psi.
Read DetailsDetermine the maximum axial strength φPn,max for the followi…
Determine the maximum axial strength φPn,max for the following tied column.Column width, b = 26 in.Column thickness, h = 14 in.Number of longitudinal bars = 6Size of longitudinal bars = No. 7Size of ties = No. 3Concrete strength = 9,000 psiYield strength of longitudinal bars = 60,000 psiYield strength of ties = 40,000 psi
Read DetailsThe nurse is caring for a client who is to receive a prescri…
The nurse is caring for a client who is to receive a prescription for an antibiotic. The client expresses concern that she may be pregnant. Which classes of antibiotics have shown to cause harm to a fetus and should be avoided with pregnant clients? SELECT ALL THAT APPLY
Read DetailsDetermine the maximum axial strength φPn,max for the followi…
Determine the maximum axial strength φPn,max for the following tied column.Column width, b = 28 in.Column thickness, h = 12 in.Number of longitudinal bars = 12Size of longitudinal bars = No. 8Size of ties = No. 3Concrete strength = 4,000 psiYield strength of longitudinal bars = 60,000 psiYield strength of ties = 40,000 psi
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