Civil and Environmental Engineering Answers

The backward and forward tangent meet at station 2 + 220 is to connected to form spiral easement curve with 80m equal spirals. The deflection angle of the simple curve is 20֯֯ 45’ and its chord length is 100m. compute the stationings, the superelevations if the width of road is approximately 10m and the maximum velocity of the vehicle is 80kph, and prepare the data needed to lay out the curve by deflection method. Compute the deflection of the spiral at every 10th of the spiral. Draw the curve with appropriate scale

Percent reduction in bearing capacity of a strip foundation resting on sand under flood conditions (water level at the base of the foundation) compared to a situation where the water level is at a depth much greater than the width of the foundation is approximately

5. What is meant by the current description of the global economy that “time and distance have been compressed”? Do you agree? What has been the impact of this compression? ​​    10

NB: Please check plagiarism and required marks is 10 marks

Solve the initial value problem y'' -12y' + 20y = 4e^3x ; y(0) = 3; y'(0) = 0 by first finding

the homogeneous solution, base solution, general solution and then finally the particular

solution.

Solve the boundary value problem  y''+5y'+6y=0; y(0)=2; y'(1)=3

Find the equivalent capacitance of a 4.20-µF capacitor and an 8.50-µF capacitor when they are connected (a) in series and (b) in parallel.

3.) When a battery is connected to the plates of a 3.00-µF capacitor, it stores a charge of 27.0 µC. What is the voltage of the battery?

[Refer to item #3] If the same capacitor is connected to another battery and 36.0 µC of charge is stored on the capacitor, what is the voltage of the battery?

When a battery is connected to the plates of a 3.00-µF capacitor, it stores a charge of 27.0 µC. What is the voltage of the battery?

A 50.0-g sample of copper is at 25.0°C. If 1 200 J of energy is added to it by heat, what is the final temperature of the copper?

A 1.0-kg bar of copper is heated at atmospheric pressure so that its temperature increases from 20°C to 50°C. How much energy is transferred to the copper bar by heat?

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Where can Jill get a sample contract to help her write the terms of a new contract?

Jill is an architect at a construction firm. Next month she is going to begin her work on a new project. However, she does not know what terms to include in the contract with the owner. So, she decides to get contract sample from to help her draft the contract.