Civil and Environmental Engineering Answers

A field is in the form of a regular pentagon. The direction of the bounding sides was surveyed with an assumed meridian of 5° to the right of the true north and south meridian. As surveyed with an assumed meridian, the bearing of one side AB is N 33° 20’ W. Compute the true bearing and azimuth of each side of the field.

Show that 𝑦 = ln (𝑥) is a solution of 𝑥𝑦′′ + 𝑦′ = 0 

Two tangents having azimuths 240 and 282 degrees are connected by a spiral curve with 191 m radius of circular curve. The width of roadways is 15 m. If the design velocity is 75 kph. Determine the ff.

Write the overall reaction for the situation in which acetate is the donor and carbon source, nitrate is the acceptor and nitrogen source, and f. = 0.333.

Write the equilibrium expression for the reaction of zinc and HCl. 

Should the equilibrium expression change if the size of the Magnesium pieces changes? Why or why not?

Should the reaction rate change if the size of the Zn pieces changes? Why or why not?

When the concentration of HCl is increased, what happens to the reaction rate? Is this what you expected? Why or why not?

Write the balanced equation for H2O2 decomposition in the presence of MnO2. The products are water and oxygen gas.

What effect does MnO2 have on the reaction rate of the decomposition of hydrogen peroxide?